Physics
The electrical energy supplied by a source is given by:
- W = QV
- W = VIt
- W = I2Rt
- All of the above
Current Electricity
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Answer
All of the above
Reason — We know, W = QV
As, Q = It
Hence, substituting we get
W = VIt
And By Ohm's Law : V = IR
Hence, substituting we get
W = (IR)It = I2Rt
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