PhysicsLAB: 2008 C2 E&M

In the circuit shown above, A and B are terminals to which different circuit components can be connected.

(a) Calculate the potential difference across R₂ immediately after the switch S is closed in each of the following cases.

	i. A 50 Ω resistor connects A and B.

	ii. A 40 mH inductor connects A and B.

	iii. An initially uncharged 0.80 μF capacitor connects A and B.

	(b) The switch gets closed at time t = 0 . On the axes below, sketch the graphs of the current in the 100-ohm resistor R₃ versus time t for the three cases. Label the graphs R for the resistor, L for the inductor, and C for the capacitor.