Question

A circular loop of flexible conducting material is kept in a magnetic field directed perpendicularly into its plane. By holding the loop at diametrically opposite points it is suddenly stretched outwards, then
1. No current is induced in the loop
2. Anti clockwise current is induced
3. Clockwise current is induced
4. Only emf is induced

Answer 1

Answer:-

The correct answer out of the below 4 options for the question will be :- 3

1. No current is induced in the loop

2. Anti clockwise current is induced

3. Clockwise current is induced

4. Only emf is induced

As per Lenz ' s Law the ' Clockwise current is induced ' .

Answer 2

Answer: The correct answer is "clockwise current is induced".

Explanation:

Lenz's law: It states that the current is induced in the conductor in such a direction that it opposes the change that induced it.

In the given problem, a circular loop of flexible conducting material is kept in a magnetic field. It is directed perpendicular into its plane. It is held at diametrically opposite points then it is stretched outwards. The area of the loop is changing then the magnetic flux will change with the time.The current is induced in the circular loop.

According to Lenz's law, the clockwise current is induced.

Therefore, the correct option is (3).