A 5-turn square loop (10 cm along a side, resistance = 4.0 ?) is placed in a magnetic field that makes an angle of 30° with the plane of the loop. The magnitude of this field varies with time according to B = 0.50t2, where t is measured in s and B in T. What is the induced current in the coil at t = 4.0 s?

a. 25 mA
b. 5.0 mA
c. 13 mA
d. 43 mA
e. 50 mA


a

Physics & Space Science

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