12th Class Physics Electro Magnetic Induction Question Bank MCQs - Electromagnetic Induction

  • question_answer
    In which of the following application, eddy current has no role to play?

    A) Electric power meters

    B) Induction furnace

    C) LED lights

    D) Magnetic brakes in trains

    Correct Answer: C

    Solution :

    Option [c] is correct. Explanation: LED is a p-n junction diode and emits light when forward biased. 


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