Question

a rectangular coil of n turns and area of cross section a is held in a time varying magnetic field given by b=bnotsinomegat with the plane of the coil normal to the magnetic field deduce and expression for the emf induced in the coil
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Answer 1

Answer:

NBA ω

Explanation:

Given, a coil of N turns an area A, rotated with angular speed ω in a uniform magnetic field B.

The flux linking to the coil, ϕ=NBA sin(ωt)

Therefore,

Induced EMF, E=d (NBA sin(ωt))/dt)

E= NBA ω

Emax= NBA ω