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The two rails of railway track, insulated from each other, and the ground are connected to a milli-voltmeter. What will be the reading of the milli-voltmeter when a train travels at a speed of 180 km /hr along the track, if the vertical component of earth’s magnetic field is 2 × 10 - 4 weber /m2 and rails are separated by 1 m.

A: 10 mV
B: 1 V
C: 1 mV
D: 100 V
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SHAILENDRA YADAV answers with (C)
AJAY SINGH answers with (C)
AKASH KUMAR answers with (A)
NIRMAL SINGH answers with (C)
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