A metal rod of length 1 m is rotated abo...

A metal rod of length 1 m is rotated about one of its ends in a plane at right angles to a uniform magnetic field of `2.5xx10^(-3)(Wb)/m^2`. If itmakes 30rps, calculate the induced emf between its ends.

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`l=1m, B=2.5xx10^(-3)(Wb)/m^2,f=30rps`
`e=-Bl^2pif=-2.5xx10^(-3)xx1xx3.14xx30=-0.235`volt.

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