Physics PYQ 113 of 144 · Electricity

The unit of electric power is

  1. Aampere
  2. Bvolt
  3. Ccoulomb
  4. Dwatt
  5. ENone of the above / More than one of the above

65th BPSC

Show answer and explanation

Correct answer: (d) watt

Explanation

Watt (W) is the SI unit of electric power – the rate of transfer of energy.

One watt equals one ampere flowing under one volt (P = VI).

Ampere measures current, volt measures potential and coulomb measures charge, so they are ruled out.

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