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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2011

  • question_answer
    A magnetic field of 20 T is normal to a coil of 100 turns and area\[{{10}^{-2}}{{m}^{2}}\]. If the coil is removed from the magnetic field is 2 ms, what is the induced emf set up in the coil?

    A)  2 kV            

    B)  5 kV

    C)  7 kV           

    D)  10 kV

    Correct Answer: D

    Solution :

     \[E=\frac{BNA}{t}\] \[E=\frac{20\times 100\times {{10}^{-2}}}{2\times {{10}^{-3}}}\] \[E=1000V=10kV\]


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