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A horizontal straight wire 20 m long ext...

A horizontal straight wire 20 m long extending from east to west falling with a speed of `5.0 m//s`, at right angles to the horizontal component of the earth’s magnetic field `0.30 × 10^(–4) Wb//m^(2)`. The instantaneous value of the e.m.f. induced in the wire will be

A

`3 mV`

B

`4.5 mV`

C

`1.5 mV`

D

`6.0 mV`

Text Solution

Verified by Experts

The correct Answer is:
A
`E_("ind")=Bvl =0.3xx10^(-4)xx5xx20=3xx10^(-3)v=3mv`
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