JEE Physics · Easy

Current Electricity: Joule Heating MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Joule HeatingEasyQuestion 31646

Question

Heat produced in a conductor of resistance R carrying current I for time t is:
  1. A
    IRt
  2. B
    I²Rt
    Correct
  3. C
    IR²t
  4. D
    I²R/t

Correct answer

I²Rt

Explanation

Joule's law: H = I²Rt. Energy dissipated as heat equals power × time = I²R × t.