A uniform magnetic field pointing out of the page varies in time according to B = ct². A circular conducting Ohmic loop of radius a and resistance R lies in the plane. Determine the induced current in the loop. 2лса²/R ct²/R 2лctа²/R zero лсtа²/R

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A: so induced emf, v=-dϕdt=-BdAdtnow, A=πr2so,dAdt=πr2ω2πso,absolute voltage, v=Br2ω2

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