A heater of resistance is connected to a supply. What is the power consumed (in W)?

Answer and explanation

Correct answer: A. 220

  1. Step 1: State the electrical power dissipation formula in terms of voltage and resistance: .
  2. Step 2: Substitute potential difference and resistance : .
  3. Step 3: Compute power: .
Answer
220.
Why not the others: 6050, 2 and 110 do not fit.

Practise more Current electricity.

Free questions with an explanation for every one, and full timed CBSE Class 12 mock tests.

All Current electricity questionsTake a mock test

More Current electricity questions

Revise with flashcards