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A magnetic field B= 2t + 4t^(2) (where t...

A magnetic field `B= 2t + 4t^(2)` (where t= time) is applied perpendicular to the plane of a circular wire of radius r and resistance R. If all the units are in SI the electric charge that flows through the circular wire during t=0s to t= 2s is

A

`(6pi r^(2))/(R )`

B

`(20 pi r^(2))/(R )`

C

`(32pi r^(2))/(R )`

D

`(48pi r^(2))/(R )`

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