Chapter 11, Problem 33P

The network in Fig. 11.98 employs a DMM with an internal resistance of 10 M $\Omega$ in the voltmeter mode. The switch is closed at $t=\text{0 s}.$

a. Find the voltage across the coil the instant after the switch is closed.

b. What is the final value of the current i_L?

c. How much time must pass before L reaches 10 $\mu$ A?

d. What is the voltmeter reading at $t=\text{12}$ $\mu$s?

Fig. 11.98