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A 5.0-cm-diameter coil has 20 turns and a resistance of 0.50 Ω. A magnetic field "parallel"...

A 5.0-cm-diameter coil has 20 turns and a resistance of 0.50 Ω. A magnetic field "parallel" to the coil's axis is B = 0.020t + 0.010t2, where B is in tesla and t is in seconds.

a) Find an expression for the induced current I(t) as a function of time.

b) Evaluate I at t = 10 s and t = 20 s.

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