In the figure below suppose that script E 620 V R 200 and

In the figure below, suppose that script E = 62.0 V, R = 200 , and L = 0.160 H. Initially, there is no current in the circuit. Switch S2 is left open, and switch S1 is closed.

(a) Just after S₁ is closed, what are the potential differences v_ab and v_bc?
v_ab = V

v_bc = V

(b) A long time (many time constants) after S₁ is closed, what are v_ab and v_bc?

v_ab = V

v_bc = V

(c) What are v_ab and v_bc at an intermediate time when i = 0.150 A?

v_ab = V

v_bc = V

Solution

1)

Vab= 0 V inductor act as an open circuit

Vbc= 62 V

inductor act as an open circuit

2)

Vab= voltage of battery=62 V Here inductor acts as simple wire.

Vbc= 0

3)

Vab=iR

=(0.15 A)(200 ohms)

=30 V

Vbc=62V -30V

=32 V