Question

Give reasons for the following.

1. A fused bulb doesn't glow.

2. Reflector is given in the electric torch.​

Answer 1

Answer:

A fused bulb has a break in its filament which means that there is a break in the path of the current between the terminals of the electric cell. Therefore, a fused bulb does not light up as no current passes through its filament.

When the flashlight is turned on, the chemical energy stored in batteries is converted into electrical energy that flows through wires of flashlight. This electrical energy is then transformed into light and heat energies. A reflector is there so if any light goes in other direction it will hit the reflector .