ANSWERS: 1
  • You're talking about two different things here: current and power. Electricity can be viewed like a waterfall. The height of the waterfall is equivalent to the electrical potential, measured in volts (V), and the volume of water flowing over the top is equivalent to the electrical current, measured in amperes (A). Power is how much work the waterfall does or the amount of power it can potentially produce. Power is measured in watts: a device consuming one volt of electricity at a current of one ampere is consuming one volt-ampere or watt of power. A 120W light bulb operating on a household supply of 120V power source (RMS or root-mean-squared volts A/C) is consuming 1A, as shown by: 120V x 1A = 120VA = 120W Power is a measure of how much work is done by an electrical system or the amount of power that can be produced. kVA are kilo-volt-amperes, so 1kVA = 1000VA or 1000W.

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