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The current in the primary coil at time t is given by `I=(8t^(2)-4)` Ampere. If the e.m.f induced in the secondary coil is given by `e_(s)=32 xx 10^(-3)` t volt, then the mutual inductance between the two coil isA. 1 millihenryB. 2mHC. 5 mHD. 10 mH |
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Answer» Correct Answer - B `I = 8t^(2)-4 :. (dI)/(dt) = 16 t :. E = M(dI)/(dt)` `:. 32 xx 10^(-3) t = M xx 16 t :. M = 2 xx 10^(-3) H`. |
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