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A square coil of 100 turns and side leng...

A square coil of 100 turns and side length 1 cm is rotating in a uniform magnetic field such that axis of rotation is perpendicular to magnetic field. If coil completes 1 rotation in 1ms.Find average EMF induced in `muV)` in half rotation. ( Magnetic field `( B) = 10^(-5) T ` ) .

Text Solution

Verified by Experts

The correct Answer is:
400
Flux `(phi)=NBA`
Change in flux `=2NBA`
`=2xx100xx10^(-5)xx10^(-4)`
EMF induced `=(Delta phi)/(t) = (2xx10^(-7))/(t)`
`t=(1ms)/(2) =0.5ms`
EMF `= (2xx10^(-7))/(0.5xx10^(-3))=4xx10^(-4)V`
`=400xx10^(-6)V=400mu V`
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