Question
How much electrical energy flows through a wire in 1 second when the power is 1 kW?
Answer: Option B
:
B
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B
We know that, Power=Energytime, the SI unit of power is watt, energy is joule and time is second.
So, 1 W = 1 joule per sec and 1 kW = 1000 joule per sec.
Therefore, 1000 J electrical energy flows through the wire in 1 second when the power is 1 kW.
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