Question

why a torch does not work so effectively after using it for several years?(long answer)​

Answer 1

Explanation:

The possible reasons for not functioning of torch are:

(i) The torch bulb may be fused.

(ii) The cells may be discharged.

(iii) The cells may not be placed in the correct order.

Answer 2

The torch does not work efficiently after using it for several years because the bulb in the torch gets fused or the power of the cell will be down.

Explanation:

• The hand-held light is a torch and it may contain incandescent light or light emitting diodes.
• Bulb, cell or battery, wires, switch and plastic case are present in the torch.
• Chemical energy is stored in the battery and it is used to light up the torch.
• When the chemicals becomes less, the torch light will become dim.
• When torch light is used for several years, the bulb will get fused due to the break in the filament.
• Hence, the bulb get fused, it will not work because current will not be passed through the filament.