A conducting ring of radius r is placed perpendicular inside a time varying magnetic field given by B=B•+alpha t. B• and alpha are positive constant. Emf induced in the ring is

Area of the ring A =πr2B=Bo+αtFlux linked with the loop is ϕ=B×A=(Bo+αt)×πr2Emf induced in the loop is E=-dϕdt=-d((Bo+αt)×πr2)dt=πr2×-d((Bo+αt)dt=-πr2×αmagnitude of emf induced =πr2×αRegardsDear student
 

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