JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Faraday's and Lenz's Law

  • question_answer
    A coil having 500 square loops each of side 10 cm is placed normal to a magnetic flux which increases at the rate of 1.0 tesla/second. The induced e.m.f. in volts is [CPMT 1989, 90; DCE 2002]

    A)             0.1

    B)            0.5

    C)             1   

    D)            5

    Correct Answer: D

    Solution :

               \[|e|\,=N\left( \frac{\Delta B}{\Delta t} \right).A\cos \theta \]\[=500\times 1\times {{(10\times {{10}^{-2}})}^{2}}\cos 0=5V.\]


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