use figures below

Q3) The inductor in Figure 3 initially has no current. Immediately after the switch is turned to position 1, which of the curves shown in Figure 4 (A or B) will describe the (1. = 7 points and II. to IV. = 6 points each) I. inductor voltage? Circle one the two letters A B II. resistor Ri voltage? Circle one the two letters A B III. what is the circuit time constant in this case? Write your answer with correct units; IV. how long does it take for the circuit to reach it's steady state condition? Figure 2 L R2502 R, R=100 1-800mH Figure 3 B