The diagram illustrates an electric circuit. Which lamps are lit when switch $S_1$ is closed and $S_2$ is open?
- A$L_1$ only
- B$L_3$ only
- C$L_1$ and $L_2$ only
- D$L_1,\;L_2$ and $L_3$
Physics 5054 · O Level · Series and parallel circuits
Physics 5054 · O Level · Series and parallel circuits
The diagram illustrates an electric circuit. Which lamps are lit when switch $S_1$ is closed and $S_2$ is open?