Question

Statement I: An electric bulb works on the principle of the heating effect of electric current.
Statement II: The electric bulb converts electrical energy to heat energy only.
Select the correct statement below.

• A. Only statement I is correct.
• B. Only statement II is correct.
• C. Both the statements are incorrect.
• D. Both the statements are correct.

Answer 1

The correct option is A Only statement I is correct.

An electric bulb works on the principle of the heating effect of electric current.
In the light bulb, the flow of charge through the filament heats it up and causes it to glow. In this way, the light bulb converts electrical energy to heat energy and light energy.
Hence, only statement I is correct.