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

  • question_answer
    When the rate of change of current is unity, the induced emf is equal to:

    A) thickness of coil        

    B) number of turns in coil

    C) coefficient of self inductance

    D) total flux linked with coil

    Correct Answer: C

    Solution :

    (c) coefficient of self inductance As,        \[\varepsilon =L\frac{dl}{dt}\] When    \[\frac{dl}{dt}=l,\varepsilon =L\]


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