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A 10 m long horizontal wire extends from...

A 10 m long horizontal wire extends from North east ro South East. It is falling with a speed of `5.0 ms^(-1)`, at right angles to the horizontal component of the earth's magnetic field, of `0.3xx10^(-4)Wb//m^(2)`. The value of the induced emf in wire is :

A

`1.1xx10^(-3)V`

B

`2.5xx10^(-3)V`

C

`0.3xx10^(-3)V`

D

`1.5xx10^(-3)V`

Text Solution

Verified by Experts

The correct Answer is:
A

`E_("ind") = Bvl sin 45^@`
`=0.3 xx10^(-4)xx 5 xx10xx1/sqrt2=1.060xx10^(-3)V`
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