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Two rail tracks, insulated from each oth...

Two rail tracks, insulated from each other and the ground, are connected to milli voltmeter. What is the reading of the milli voltmeter when a train passes at a speed of 180 km/hr along the track ? Given that – the horizontal component of earth’s magnetic field `B_(H)` is `0.2 xx 10–4 Wb// m^(2)` and rails are separated by 1 metre.

A

1 mV

B

10 mV

C

100 mV

D

1 V

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