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A coil is placed in a magnetic field directed downward and increasing from 0 to 18 T in 0.1 s. area of coil is 2 `m^(2)` and resistance 5 `Omega`. Induced current will beA. 72 A anticlockwise directionB. 27 A anticlockwise directionC. 72 A clockwise directionD. 27 A clockwise direction |
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Answer» Correct Answer - A `I=(e)/(R)=(1)/(R)(dphi)/(dt)` `=(A)/(R)(dB)/(dt)=72A` Current induced will oppose the increase of downward magnetic field, so current will be anticlockwise. |
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