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., 10 mV, 1 V, 1 mV, 100 V, Science questions and answers, Study Online for free, egpage.com

A:	10 mV
B:	1 V
C:	1 mV
D:	100 V
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