The two rails of a railway track, insulated from each other and the gr – McqOptions

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1.	The two rails of a railway track, insulated from each other and the ground, are connected to a milli voltmeter. What is the reading of the milli voltmeter when a train travels at a speed of 180 km/hour along the track, given that the vertical component of earth's magnetic field is\[0.2\times {{10}^{-4}}\,weber/{{m}^{2}}\] and the rails are separated by 1 m?
A.	1
B.	3
C.	5
D.	7
Answer» B. 3

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