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`. Ind
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 be
A. 72 A anticlockwise direction
B. 27 A anticlockwise direction
C. 72 A clockwise direction
D. 27 A clockwise direction
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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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