Question

When a current flows through a conductor, its temperature

• A. Increases
• B. Decreases
• C. Remains same
• D. May increase or decrease

Answer 1

The correct option is A

Increases

1. When current flows through a conductor, its temperature increases due to heat energy generated across it. this statement is also considered as joule’s heating effect of current.
2. When electrons flow through a conductor, they collide with the conductor atom which results in an increase in resistance and thereby, loss of energy.
3. Hence, the correct option is (A) i.e. Increases.