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A copper coil with 30 turns and radius 10 cm has a magnetic field going through...

A copper coil with 30 turns and radius 10 cm has a magnetic field going through it which changes in time according to the formula B = 5e-0.3t Tesla. The radius of the wire is 0.24 mm and the resistivity of copper is 1.68 x 10-8 Ωm.

(a) Calculate the induced voltage in the coil at 4 seconds.

(b) Calculate the induced current in the coil at 4 seconds.

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