The two rails of a railway track, insula...

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//hours` along the track, given that the vertical components of earth's magnitic field is `0.2xx10^(_4) weber//m^(2)` & the rails are separated by 1 meter?

`10^(-2)`volt

`10^(-4)`volt

`10^(-3)` volt

`1` volt

Text Solution

Verified by Experts

The correct Answer is:

`e=B_(v)vl=0.2xx10^(-4)xx((180xx1000)/(3600))xx1`
`=10^(-3)V`

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