Question

In the devices like electric heater, electric geyser, electric bulb-the heating effect of current can be put to good use. Can you think of the situations where this effect results in wastage of energy?

Answer 1

The heating effect of electric current results in the wastage of energy in an electric bulb. In electric bulbs, the electrical energy is converted into light energy. A part of the electrical energy is converted into heat energy, which cannot be utilised. This results in the wastage of energy.