When do the values of current through inductor and voltage through capacitor change.

When do the values of current through inductor and voltage through capacitor change their states under any performed operation in an electrical circuit?

a. Instantaneously
b. They remain same just before & just after the switch is closed.
c. They gets changed only when the resistance value changes
d. Both a & c

Correct Answer : b. They remain same just before & just after the switch is closed.

Explanation :

Practically, in any operational circuit, there can be proximity in the duration of variations in voltage & current values only & only just before and after closing the switch connection. Therefore, these values are highly independent of change in resistances & also instantaneous change is not feasible.