A coil of N turns, A area is placed in uniform transverse magnetic field B. If it is turned through 180o about it's one of the diameters in 2 seconds. Find the rate of change of magnetic flux through the coil.

Dear Student,
(2) emf, e=-ndφdte=-nϕ1-ϕ2te=-nBAcos0°-cos180°0.2e=-nBA1+10.2e=-2×nBA0.2e=-10×nBAThe negative sign shows the direction of emf.
Regards

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