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Question 20245
JEE Physics · Medium

Electromagnetic Induction and Alternating Current: Eddy Currents — Applications MCQ

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Eddy Currents — ApplicationsMediumQuestion 20245

Question

Induction cooker works on the principle of:
  1. A
    Conduction heating
  2. B
    Radiation heating
  3. C
    Eddy current heating in the cooking vessel
    Correct
  4. D
    Resistance heating of coil

Correct answer

Eddy current heating in the cooking vessel

Explanation

A high-frequency AC in the coil below the cooktop induces eddy currents in the ferromagnetic cooking vessel. The I²R heating of these eddy currents heats the vessel directly — highly efficient because only the vessel heats up, not the cooktop surface.

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