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

  • question_answer
    A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2 T. The normal to the plane of the coil makes an angle of 60° with the direction of the magnetic field. The magnetic flux linked with the coil is [MP PMT 1997]

    A)            \[5\times {{10}^{-3}}Wb\]     

    B)            \[5\times {{10}^{-5}}\,Wb\]

    C)            \[{{10}^{-2}}\,Wb\]           

    D)            \[{{10}^{-4}}\,Wb\]

    Correct Answer: A

    Solution :

                       \[\varphi =NBA\cos \theta =100\times 0.2\times 5\times {{10}^{-4}}\cos {{60}^{o}}\]            \[=5\times {{10}^{-3}}Wb\]


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