Chapter 23, Problem 94GP

(a)

To determine

The current in the circuit along time after the switch is closed.

(b)

To determine

The behavior of light bulb from the time the switch is closed until the current reaches the value found in part (a).

(c)

To determine

The behavior of light bulb from the time the switch is opened after having being closed for a long time.

(d)

To determine

The voltage across the light bulb just before and after the witch is closed are $0$ and $\frac{\epsilon R_2}{R_1}$.