Question

Calculate current through the circuit when (a) switch is open (b) switch is closed.

Answer 1

(a) When a switch is open then the circuit is open hence the current through the circuit is zero.

(b) when the switch is closed than circuit is closed than the current through $I=\frac{V}{R}=\frac{10}{2.5}=4\times {10}^{-3}A$