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JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Motional EMI

  • question_answer
    An aeroplane in which the distance between the tips of wings is 50 m is flying horizontally with a speed of 360 km/hr over a place where the vertical components of earth magnetic field is\[2.0\times {{10}^{-4}}weber/{{m}^{2}}\]. The potential difference between the tips of wings would be [CPMT 1990; MP PET 1991]

    A)            0.1 V                                        

    B)            1.0 V

    C)            0.2 V                                        

    D)            0.01 V

    Correct Answer: B

    Solution :

               \[e={{B}_{v}}.v.l=2\times {{10}^{-4}}\times \left( \frac{360\times 1000}{3600} \right)\times 50\]\[\Rightarrow e=1\ V\]


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