Physics PYQ 97 of 144 · Electricity

Which term in the following does not denote the electric power in electric circuit?

  1. AIR²
  2. BI²R
  3. CVI
  4. DV²/R

71st BPSC

Show answer and explanation

Correct answer: (a) IR²

Explanation

Electric power is the rate of energy use, basically P = VI.

Using Ohm's Law (V = IR), this rewrites as P = I²R and P = V²/R.

IR² matches none of these valid forms, so it does not denote electric power.

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