Research based question.

A resistor is connected in series with an inductor, a switch that is in the open position and a 9V battery.

(a) What would happen to the current in the circuit when the switch is closed?

(b) State the mathematical equation that describes the change in current in the circuit.

(c) If the resistor has a value of 500 and the inductor has a value of 10H, calculate the current in the circuit 0-5 seconds after the switch is closed.