The magnetic flux passing perpendicular to the plane of coil and directed into the paper is varying according to the relation ¢=6t^2+7t+1 where ¢is in Weber and t in second . The magnitude of induced charge in zero to one second is(R of coil is 10 ohm)
A)1.3C
B)2.2C
C)7.4C
D) none
