The bulb in the circuit shown in Fig.14.23 does not glow. Can you

identify the problem? Make necessary changes in the circuit to make

the bulb glow.

The bulb didn’t glow because the negative terminals of both the battery have been connected to the bulb. The positive terminal of first cell should be connected to the negative terminal of another cell. The other ends should be connected to bulb and key.

The Correct Diagram will be as follows: