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

  • question_answer
    A conductor square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B constant in time and space, pointing perpendicular and into the plane of the loop exists everywhere. The current induced in the loop is:

    A) \[\frac{Blv}{R}\text{clockwise}\] 

    B) \[\frac{Blv}{R}\text{anti}\,\text{clockwise}\]

    C) \[\frac{2Blv}{R}\text{anti}\,\text{clockwise}\]      

    D) zero

    Correct Answer: D

    Solution :

    (d) zero No flux change is taking place because magnetic field is uniform everywhere. As there is no change in flux, induced emf is zero and therefore no current induced.


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