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A square loop of side 22cm …

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A square loop of side 22cm is changed to a circle in time 0.4sec with its plane normal to a magnetic field 0.2T. The emf induced is

    • Posted by Bharti Bharti 5 years, 8 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Saket Kumar Suman 6 years, 10 months ago

    ¢=flux(phie.) Emf=-d¢/dt or -∆¢/∆t =-(B*A(f)-B*A(i))/∆t Here,peri. Of sq.=circum. Of cir. rad of cir.=44/π cm ¢=B*A ¢final=1233.12*10^-5 app. ¢init.=968*10^-5 ∆¢=265.12*10-5 Emf=265.12*10^-5/0.4 =662.8*10^-5 Wb/sec Ans.

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