In a region of unform magnetic induction...

In a region of unform magnetic induction `B=10^(-2)` T, a circulr coil of radius 30 cm and resistance `pi^(2)` ohm is rotated about on the axis which is prependicular to the direction of B and which froms a diameter of the coil. If the coil rotates at 200 rpm the amplitude of the alternating current induced in the coil is

`4pi^(2)mA`

30mA

6mA

200 mA

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