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Which one of the following formulas does not represent electrical power?
1. I2 R
2. I R2
3. V I
4. V2/R

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Correct Answer - Option 2 : I R2


  • Electric Power: The rate at which electrical energy is dissipated into other forms of energy is called electrical power i.e.,

\(P = \frac{W}{t} = VI = {I^2}R = \frac{{{V^2}}}{R}\)

Where V = Potential difference, R = Resistance and I = current.


  • From the above, it is clear that the formulas do not represent electrical power is IR2.

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