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A train is moving towards north with a s...

A train is moving towards north with a speed of 180 kilometer per hour. If the vertical component of the earth's magnetic field is `0.2 xx 10^(-4)T`, the e.m.f induced in the axis 1.5m long is

A

54mV

B

5.4mV

C

1.5mV

D

15mV

Text Solution

Verified by Experts

The correct Answer is:
C
180 km/h = 50m/s
Induced emf = B/v
`=0.2 xx 10^(-4) xx 1.5 xx 50 = 1.5mV`
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