Power is a measure of energy per unit time. When using SI units, energy is normally measured in jules (J) and time is measured in seconds (s). So the unit of power is joules per second. A substitute for this is the watt (W). 1 Watt of power is equivalent to one joule of energy produced or spent (depending on what energy is being measured) every second. This is why voltage, provided to a circuit, multiplied by the current, passing through the circuit, is equal to the power consumed by the circuit. Voltage is measured in volts and the volt (V) is in fact a measure of the number of joules of energy per coulomb (C) of charge. Current is measured in amperes (A) and is a measure of the number of coulombs of charge per second. So, when voltage (in volts) and current (in amps) are multiplied by one another, the unit of the resulting value will be joules per second or the watt.
The correct answer to your question is C (watts).
Note that the term watt-hour (Wh) is a measure of energy, not power. A watt-hour is the amount of energy spent or produced (depending on what is being looked at) if one watt of power is spent or produced, respectively, for a whole hour. This is equal to 1 watt times 3,600 seconds (as there are 60 times 60 seconds in an hour), which is 3,600 joules. Electric energy, for home or business consumption, is normally measured in units of kilowatt-hours (kWh), which is equal to 3,600,000 joules (or 3.6MJ).
2006-07-12 10:59:36
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answer #1
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answered by What's the Q? 2
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the correct answer is watts. Watts = volts x amps
Volts is electrical potential = how strongly the electrons want to move.
Amperes is current = how many electrons are moving
Ohms is resistance (sometimes also called impedence) = how easily or how much resistance does the device or the wires offer to electron flow.
2006-07-12 11:25:39
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answer #2
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answered by eric.s 3
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Watts.
2006-07-12 10:51:07
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answer #3
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answered by extton 5
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C. Watts
2006-07-12 10:51:12
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answer #4
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answered by Anonymous
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C.
Which is calculated as voltage times amperage.
2006-07-12 10:53:27
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answer #5
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answered by Anonymous
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I agree, do your own homework and if your momma sees this make sure she shuts you down at homework time.
2006-07-12 10:53:36
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answer #6
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answered by Anonymous
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watts
2006-07-12 11:06:44
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answer #7
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answered by The Frontrunner 5
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c. watts
volts is for voltage
amperes is for current
ohms is for resistance
2006-07-12 10:51:01
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answer #8
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answered by galactic_man_of_leisure 4
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volts
2006-07-12 10:50:36
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answer #9
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answered by wolfbuddyxxx 2
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do your own homework, kid.
2006-07-12 10:49:57
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answer #10
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answered by uncle_beer78 3
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