Question

Why is it said that there is wastage of electricity in using an electric bulb?

Please give short answer correctly​

Answer 1

Answer:

The energy of each collision vibrates the atoms and heats them up, eventually producing light. Only 10% of the energy used by an incandescent bulb is converted to light; the other 90% is lost as heat.

Explanation:

Answer 2

In a normal bulb both heat and electricity. Hence there is a wastage of electricity.