Power Knowledge Base
Power ? What is power in physical science terms? And how is power and work related?
power...................? whats more powerful a .22 air rifle or a .177 air rifle? im gettin a crosman powermaster 664sb air rifle will it have enough power to kill rabbits and pests?
How to solve poor power problem or how to improve my power quality? For our industry due to shortage of power we have provided generator (now running with generator), machines are operating from the generator power. But we have power quality problem there, we have not installed capacitor bank to improve generator power. Do we have any problem if we add capacitor bank panels to improve generator power. Do there any other method to improve power quality. Please note that due to this problem we are facing malfunctioning in our machines.
Are Power bars really good for your body? Or, is it simply junk food? I have been eating power bars for breakfast ocassionally before my exercise science class because I want energy. However, I have noticed today as I browsed down the store shelf to purchase a power bar all the different flavors they have. They have cappicino, chocalate, berries and cream, etc. So, now I'm wondering if power bars are just another junk food? Are power bars really that good in nurtrition as they claim to be?
How much power is required to power a large family home? I am doing some research into setting up a wind turbine for my house. I see terms like 'kW hours' for energy or power consumption. If my house uses 1500kW hours of energy per week does this mean i need to run a 1500kW generator for 1 hour to satisfy my power needs? How would i then go about sizing the required turbine needed to effectively power my home? This is all new to me so i can see alot of follow up questions coming/
How much electrical power can I get out of a riding lawn mower? If I got in a pinch during a power outage and connected a 12 volt to 110 volt power convertor to the battery of my lawn tractor (via a cigarette lighter connection that I can install), how much power would be available? I have a typical $900 Lowes lawn mower with a 15.5 HP Briggs engine. And I don't have the power convertor yet, so I can buy any size.
How do you increase punching power and speed without using weights? I want to increase my punching power for a boxing tournament.What are exercises and way you could increase your punching speed and power without doing weights?I already practiced hitting a heavy bag which helped increase my speed and power,but I want to know other ways of increasing punching speed and power.
What percentage of the original power is lost help please? A power transmission line 50km long has a total resistance of 0.60 ohm. A generator produces 7 kilowatts at 100V. In order to reduce the power loss due to heating of the transmission line, the voltage is stepped up to 100kV using a transformer. What percentage of the original power would be lost if the transformer were not used? What percentage of the original power is lost when the transformer is used? How would I figure this out? Any help is highly appreciated thanks!
How will we power aircraft when the oil runs out? The world economy runs on cheap transportation. Within a continent, we can replace gas with electricity if we have a good power source. Between continents, we need to fly at jet speeds, or commerce becomes much slower. And that means a power source that is not only portable, but produces a huge amount of thrust to keep a very heavy object in the air. What will replace the portability and explosive power of petroleum-based jet fuel?
How do i tell the power output of my desktop's power supply? I am planning on buying a new graphics card for my desktop and it requires for minimum 500 Watts and for maximum 600 Watts. And i want to know if im going to have to buy a new power supply to support it. So how do i tell the power output of my power supply?
What is causing loss of power in some circuits in my home? I just started losing power in parts of my home. So naturally I go check the breakers, none are triped. The home is 20 yrs old. I have checked to see what exactly is on each breaker. So when power goes off its like I lose it on not one breaker but 4 or more at the same time. But no breakers actually trip. I went and got 5 new breakers and installed them hoping to solve this problem. I still lose power and I have noticed that on the circuts I put the new breakers the lights on those circuts come back on dim. The refrigerater isnt running but the light is on but its really dim. We have suffered a lot of power outages this winter but all my appliances seem fine. I am stumped dont understand how whole circuts go off and breakers dont trip. Any ideas?
How do I check the power at the breaker box for power to the water heater? We had a branch take out the mast during the snow storm and the mast was bent. The power company cut our power due to the surge it caused. An electrician rewired up to the meter outside. A couple of weeks later we are having issues. The water heater quit working, we replaced it, but no power! Replacing the fuses, but one line of outlets in the kitchen seem to be weak or not working, too. It blew several appliances at the time of the surge. Could this be related? I am not sure where to go from here.
What powers does a person have that is a power of attorney and executor of a will have? My brother is the sole power of attorney and executor of my fathers will. There are four us. Me, my other two brothers and my oldest brother. It says in the will that when my father passes away that everything is to be split up four ways between us. Does my oldest brother have to abide by that or can he do anything he wants to do being that he's in control of the will? We're afraid he's going screw us over somehow being thats the way he's always been with us.
What car amplifier should I buy to power my DVC subwoofers? I need to power two 8 inch polk audio subs. RMS power rating is 180 each. They are DVC 4 ohm subs. I was looking into a two channel amp to power them. If I bridge the 2 channel amp, should the rms power be 360 watts or less at 4 ohm?. I was planning on wiring the subs in a series off of the one amp. Am I correct with the power rating if the amplifier?
What power adapter do I need when traveling from Canada to Portugal? I will be traveling to Portugal (from Canada) and have no idea what kind of power adapter I need to take with me. I will need an adapter to charge my camera and for a couple of other electronics. If someone has knowledge of power adapters, or could provide a link to details about the right adapter, that would be helpful. Thank you! I will be traveling to Portugal (from Canada) and have no idea what kind of power adapter I need to take with me. I will need an adapter to charge my camera and for a couple of other electronics. If someone has knowledge of power adapters, or could provide a link to details about the right adapter, that would be helpful. Thank you! Thank you, Poyzn! We don't have a Target here, but the information is very helpful! I appreciate it!
How do I get my power windows and power locks working again? Within a month of each other, my power locks and power windows went out. I can lock the doors by hand, but the windows are immobile and not closed all the way...which is fine until rainy season/winter snow begins. I've checked all the fuses (both under the dash and under the hood) and none are blown. I understand that the next course would be to check the power relays, but I am not sure where these are located, or if it is within my ability to fix. If it is something I can fix myself, I would like to try. It is a 1996 Honda Civic LX.
How do you increase kicking power and speed without using weights? I want to increase my kicking power for an upcoming MA tournament.What are exercises and way you could increase your kicking speed and power without doing weights?I already practiced hitting a heavy bag which helped increase my speed and power,but I want to know other ways of increasing kicking speed and power.
How much power does a home theater receiver user when in standby mode? I'm thinking of buying one of those smart powerstrips that turns off power to your entire system when you turn off the TV. It is supposed to eliminate the "vampire" load. My Onkyo TX-SR605 is a 900W system I believe. I wonder what kind of power it draws when it's just sitting there in standby mode. I want to calc my savings if I use one of these smartstrips.
What kind of solar power setup would I need to power a single room's energy needs? I live in the basement of a house and would like to run my room on solar power. I have two power strips that run a TV and DVD player, a laptop, printer and two external hard drives and I would need to use a couple floor lamps in the room as well. What kind of solar paneling setup would I need and what would be the ballpark cost on this?
How to I figure out what power supply will fit my computer? I have a 240 watt power supply in my HP Compaq dc5000 MT computer. I have bought a game card that requires a higher watt power supply. I bought a 500 watt power supply but it didn't fit my computer. How do I get a power supply that is compatible with my computer? I keep going to different sites and none of them tell me anything that clears the question up. I just keep getting more confused. Someone please help.
How can i fix xbox 360 power supply and where can i find serial number? My 360's power supply light wont turn on. I tried a different power cord. Nothing. I tried a different power outlet. Nothing. I tried waiting 2 days and still it didnt work. Any ideas on how to fix it. If i cant fix it I obviously need to sent it 2 microsoft. Where can i find my serial number? I obviously cant turn it on without the power supply so there must be another way of finding the number.
How can you work out peak power from average power? If I power a laser using a pulse generator which I set to 680kHz with a pulse width of 105ns and amplitude of 1A; and subsequently measure the AVERAGE optical power produced as 3.3mW how can I work out what the peak power is?
Why would power to a circuit be interrupted when screwing in a light bulb? I recently had the light fixture off to painting a ceiling. I accidentally hit the wires together and caused a pop and spark, but it did not trip the circuit breaker. When I re-installed the fixture it no longer worked. I use a voltage detector and there is power flowing into the box, but when I screw in a light bulb, there no longer is any power flowing in. What could cause this and how could I detect and fix it? We have tried two different fixtures, so we know the fixture is ok. We have also tried multiple bulbs.
Power steering failure. Is it safe to keep driving this car if my arms are strong enough? As title thanks. My 20 years old car's power steering is finally failing. Funny enough only when I try to make right turns at low speeds. Turning left is no problem. If I don't mind turning the steering wheel 5 times harder whenever turning right at low speed, is it safe to keep using this car without sending it in for repair? Point taken. Safety first. Will get it checked and sorted. Thank you.
What is the difference between energy and power? a. Power is used to describe energy of light, while the term energy has a broader meaning. b. Power is the rate at which energy is used, so its units are a unit of energy divided by a unit of time c. There's no difference: Energy and power are different names for the same thing d. Power is measured in joules and energy is measured in watts.
What is the most practical way to power operational amplifiers? We've been learning about op-amp circuits, and in the lab we power them with a power supply that has a range of 0-20 V, with two sources so that both polarities are available (we generally use +/- 12 volts). Obviously, this isn't very practical for most applications. Is there a way to power op-amp circuits without having to use two 9 volt batteries or an expensive power supply?
What kinds of power lines are considered dangerous? We are considering buying a house with power lines in the back yard. Well, I think they are power lines. They're not the really big metal towers that are up really high. They're on single poles and have about two or three lines on them. Would you consider these the "dangerous" kind?
How do stores power there display models for auto subwoofers? I am looking to purchase some sort of power supply for an amplifier and subwoofer I have, using my wall outlet, and converting that to the 12 volts needed for the amp. Stores such as Best Buy have displays of amps, and subwoofers, but I don't know how they power that stuff. Any ideas of what they use, and where I can get one?
How can I power a few DC devices from cigarette power plug in my car? I need to run two fans and a small pump totaling around 2.5amps from my cars cigarette power plug. Is there an adapter I can buy or make to handle this easily? I see some online but they list much higher amp amounts (around 10amp) and I don't want to burn something out. Anybody have some advice for me? Possibly willing to answer a few questions via email?
Is getting a Home Theater Power Center important to have? I'm planning on upgrading to a 60" plasma TV,Amplifier,and Blu-Ray HD player.I also would be connecting 2 powered speakers with built-in sub-woofers and a DVD/VCR recorder.Would getting one of those 8 outlet power centers that sell at Best Buy,etc. for around 2- 3 hundred dollars make any improvement in the quality of the picture and/or sound? If not then would any multi outlet power strip do?
How can I power a couple small appliances using solar power? What would I need to power a small fan, some LED lights, ect in my home, without spending hundreds or thousands of dollers? How would I set it up? I think I would need a Solar Panel, a AC/DC converter or some kind, and a Battery? Any Help! Thanks!
What is the power draw of a functioning wafer fab? I am curious about the amount of electricity needed to produce/operate a wafer fab. I hear about how much power is used by the computer chips, but have never seen the amount of power needed to make the chips themselves.
What is the power gain as a ratio and in decibels? 1.) An amplifier has an input power of 100 mW and an output power of 4 W. Find its power gain as a ratio and in decibels. 2. An attenuator has a loss of 26 dB. If a power of 2 W is applied to the attenuator, find the output power.
What power cord should I use in the following situation? My power supply for my computer takes 10A 115V. The 2 power cords I have are for my monitor and my computer's power supply but I'm not sure which is which. One of the cords says 10A 125V, and the other say says 13A 115V. Which cord should I use to hook up my computer?
How to change out a laundry dryer power cord? I have a dryer I need to change to a four prong power cord. I know to put the white in the middle, and the red or black on either side. The problem I have is the ground wire, the green one, currently runs from the nut on the door into the dryer. Do I keep this current green wire? Its not a part of the current power cord? Can I overlap the green wire to the new power cord over this one?
What kind of solar power setup would I need to power a single room's energy needs? I live in the basement of a house and would like to run my room on solar power. I have two power strips that run a TV and DVD player, a laptop, printer and two external hard drives and I would need to use a couple floor lamps in the room as well. What kind of solar paneling setup would I need and what would be the ballpark cost on this?
Will an older power supply work in a newer computer? I have an old Windows 98 computer, which has all good parts in it. I have a newer computer which the power supply has stopped working. Could I use the older power supply in it? The newer power supply which no longer works has the 4 pin connector, the older power supply does not.
How do you power a light bulb with produce? I am doing a science project and i need to know how to use produce to power a light bulb. I am using a lemon, an orange, and a potato. I need to know what I will need, how to do it, and were might I be able to get the stuff if i don't have it.
How does a power supply exactly work? I am planning to buy a 500 watts power supply, but at the same time i want to conserve energy. Does a 500 watts power supplies uses 500 watts every time i run a computer?
What are the cords connected to the power button of a computer called? I am fixing my friends computer and I can't remeber what the cords connected to the power button are called. It is like a little wiring, one end is a connector that connects to the motherboard and the other end is the actual power button. The computer is a Gateway desktop model number:510. Thanks.
How do I drain the power steering fluid from my 1990 chevy G20 van and how much fluid does it hold? I have let my power steering fluid get low. The pump is noisy. It only started to make a noise yesterday, so I hope the pump is not damaged. I would like to drain and refill the system because I think that it has Automatic gearbox fluid in there at the moment. Could you tell me the best way to drain the power steering system so I get it all out and how much power steering fluid I require to refill it? Thank you.
What type of power inverter should I get for home use? I would like to have a power source I can use when the power goes out for a couple of hours. I would just want to use a lamp, a cable modem, maybe a fan. Nothing which would draw a lot. I am looking for an alternative to a gas-powered generator. Are there power inverters available that you can keep plugged in so a battery stays charged? And when the power goes out, you pull it out and use it. It would need to have a standard outlet you can plug into. I do not want a power inverter that plugs into the car cigarette lighter. I think I saw such a device at Staples, but I'm having a hard time finding devices for sale on the internet.
What would cause power lines to send out a shower of sparks then break in half? Happened outside my house this morning. No car accident. No bad weather. No branch falling on them. The other wires on the utility pole are intact. My stepdaughter saw it through her bedroom window - said loud noise woke her, she looked out window to see the world exploding (my sister across the street saw a shower of sparks from her window). Then, the power went out in our house (and, apparently, in the whole neighborhood). When I went outside, the two upper wires strung between the utility poles were dangling down, broken in the middle. The other wires on the utility pole were just fine. The poles were standing up straight. No other damage anywhere that I could see. Power surge? Weakened wire (on both wires at the same point)? Crazy squirrel stunt gone bad?
What kind of power cables can be plugged into a car? I recently got a laptop and will soon be going on a long trip. Are there any kind of power cables that can be plugged into the lighter/power source? If there are any, where could I be able to find such cables?
Power!!!!? would 850w be enough to power 2 350w power supplies and a nvidia 780i MB with quad core q6600 , and an antec 900 gaming case. and 2 hdds 1dvd or should i just buy 1000w to be on the safe side? its meant to say 2 350w graphics cards
How to power a dc active crossover in home? Can I use a AC 120v transformer that outputs DC 12v and 2 amps to power an active crossover in my home that is made for cars? Or will there be a hum due to the AC 60hz current? I am only using it as a low pass crossover to filter output for a woofer. Any idea if 2amps will be sufficient?
How come the prime minister of Canada has no power or authority? It seems like the prime minister of Canada has no real power or authority. I say this as a canadian. Compared too the president of the US it looks that way, I know the US is a lot bigger (population wise) and has more power than canada but still. And when the prime minister is speaking at that house thing there is all these losers yelling in the back. Everything has too go threw all these votes and no one agrees so nothing really ends up happening. Could someone explain why? Also what the prime ministers powers are? Thanks so much!
How much electrical power do I need total to supply? We have 15 laptops with 15 power supplies. Each laptop needs 240 watts. Each power supply requires 100 watts. How much power do I need total to supply? What is the maximum rating or amperage should my power source to meet safety standards?
What is the power and purpose of the tenth amendment? What powers are ascribed to individual states and how much sovereignty and autonomy does each state have? To what extent can the federal government control or regulate what a state can and cannot do? Finally, are there any noteworthy examples involving the power and purpose of the tenth amendment?
How to power a portable 12 volts amplifier? I need to power some computer speakers from batteries. The power supply's output is 12 volts at 850 milliamps. The only way i can think to power this is with ten 1.2 volt rechargeable batteries, and those would only last about 2 hours. does anyone have a more practical way to power a 12 volt amplifier?
Is wind power generator at home really work ? I heard about wind power generator and I want to make a wind power generator to power things in my house. Although I am not sure where to find good information. I want to save money. Is there any reliable information on how to make wind power generator at home?
How loud is a power supply fan supposed to be? I had a new power supply installed in my HP Pavilion desktop system. The old one I couldn't hear operating even when sitting next to the tower (except when it started to go and made revving noises). The new one sounds much louder, I can still hear it if I go into another room. I'd like to know if this is normal?
Car wont start and battery cables have no power getting through them. Can anyone help? I have a 93 cavalier the battery cables have no power getting through them. All the lights turn on and everything works it just wont start. When you turn it over all it does is clicks once in the starter relay. We tried jumping it with another car and there was no power in the terminals. We had the battery, alternator, and starter check at auto zone and they were all working. The ground wire is mounted to the frame and is rusting. Since the terminals have no power is that because the ground doesn't have a good connection?
How can I power two 8 inch home audio subwoofers? I have two 8 inch Jensen subs. I hooked them up to my friends receiver but it doesnt seem to power the subs at all. Even my receiver barely powers them. Are there such things as home audio amps that I can hook them up too? Or any other suggestions?
Is any additional power lost as a result of the electric feild produced by running current through a wire? electric currents produce electric fields right? if you wrap a wire around a nail it turns into a magnet and can pick up paperclips and what not. is any extra power lost by doing this? i.e. if i ran the wire to a light bulb instead of around the nail it would be # amount bright. In i combine the two having both the light bulb and the wrapped nail together will the light be any less bright? does the nail actually consume any power?
How do I replace a power cord in a toaster? I need to replace damaged power cord in my toaster / sandwich maker. It has three wires coming out of the inside: red, green and blue. The wires in the power cord are brown, blue and yellow-green. Which wires in the toaster should be connected to which ones in the power cord? I appreciate any suggestions, but my question is: - "which wires belong together?" and not: - "what should I do when a toaster breaks?".
What group has the power to ordain courts below the Supreme Court? All bills for raising revenues must originate where? What branch has the power to lay and collect taxes? Name four things that Congress has the power to do? Of the 27 Amendments how many of them are designed to protect the citizens individual rights? Of the 27 Amendments how many of them change the structure and/or operationof the government system?
What is the power dissipated by the resistor? The emf and the internal resistance of battery are shown ( figure with point a on the left leading to the 95v battery and then a 5 ohm resistor then point b on the right. A current of 8.3 amps is drawn from the battery when a resistor is connected across the terminals. What is the power dissipated by the resistor? By the way, the positive side is towards a.
What type of power boat is required to cross the Atlantic of the Pacific? I know you can sail across the Atlantic or Pacific in a 30-40foot sailboat and many people have done it in much smaller craft. My Question is: How about a power boat? What length of boat would you need to attempt a trans-Atlantic crossing? Obviously, fuel would be the primary concern. How much fuel capacity would this boat require? Also, I would just like to throw in there: What price range are we looking at for a boat of this type?
How do I check and replenish power steering fluid in a 1992 Mercedes Benz 400e? I have a 1992 Mercedes Benz 400e. The power steering has been humming lately. A friend of mine told me it was because of the power steering fluid. Where on the car do I check the power steering fluid? And is there a specific type of power steering fluid the car needs? I already bought a 32oz. container of power steering fluid at the store to refill it.
What's the difference between torque and power? Generally, I've had answers along the lines of "Torque is the 'turning power' of the engine", but what does that mean? Why isn't the max 'turning power' of the engine at the point of max power? If a given engine delivers max torque at say 3500 revs and max power at say 7000 revs, where would I want to keep the revs to get maximum acceleration? Why?
How much electric power is needed to heat a liter of water? I intend to heat some quantity of water (say 1 liter) by applying electrical energy to a resistance. How much power is needed. From the power, I will deduce what electrical resistance is neccessary for using say a 120 V electrical network outlet.
What magical power should this story character have? Okay, the character's name is Blake. He's a boy that is trouble, on the verge of evil, average weight, tanner skin, but has temperment problems. What should he have for a power in the magical world? Sorry, just a random story that is driving me crazy thinking about! Thanks in advance and please no mean comments. Okay, the suggestions I like the most are: Fire Controling Weather Stealing someone's powers and using them. Which one out of these? Oh, and the invisibility thing.
How are different AC generators linked in a power grid? I've often wondered this. When you have two or more AC generators (say two different power plants) produce power, it seems like it would be impossible to be sure the two are in phase with each other. So how can the two be linked into a power grid? Is the same technique used when hooking up a home generator (from a wind turbine, for example) to supply the grid?
How to conserve power on my phone and computer during a train trip? So I'll be traveling on a train for 2 nights, and only one of the nights I'll have a power source (the first night we're sitting coach, the next night we're in a first class cabin). So how can i conserve my battery for my cell phone and laptop the first day if I don't have a way to charge them? Thanks!
What to expect when using 220v to 110v power converter on a refrigerator ? I'm planing to go to Europe and stay for at least a year and take all my appliances with me including: fridge,washer and dryer.If i use a heavy duty power converter wil I be OK? Will continuous use affect my power converter and create overheating and also will it consume power by it self or the only thing it does is transform power?
How do I check my power supply for sims 3? I just bought sims 3 a few weeks ago but it says I need to upgrade my video card. I googled about video cards and replacing them, and I came upon many statements that say 'that you need to check your power supply and see if it can handle it'. How? And do I need to buy a new power supply with the video card?
How to set up a power supply with 2 different currents? Suppose I have an electronic device that requires 2 different currents through 3 different circuits. One is a 12V 0.8A, the other 2 are 3.3V 2.7A. I want to power this with a single battery pack made of multiple D Cell Alkaline Batteries. How would you design the Power supply?
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