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A coil of N turns and area A is placed i...

A coil of N turns and area A is placed in a uniform transverse magnetic field B in such a way that `vecA and vecB` are parallel. If the plate in turned through `180^@` about its one of the diameter in 2 seconds then the (i) change of magnetic flux through the coil is ? (ii) rate of change of flux is the coil is ?

Text Solution

Verified by Experts

`Deltaphi=phi_2-phi_1`
`=NBA (cos theta_2-costhata_1)`
`= NBA(cos180^@-cos0)`
=NBA[-1-1]
=-2NBA
(ii) Rate of charge of flux is
`(Deltaphi)/(Deltat)=(-2NBA)/(2)`
=-NBA
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