Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Induction

Question:

Case : Read the passage and answer the question(s).

Consider a coil C1 connected to galvanometer as shown. A magnet is placed next to the coil with its North pole facing near the coil and South facing away from the coil. The magnet is then moved towards the coil. 

In context to this, answer the following question.

What happens when the bar magnet is moved slower than what it was previously?

Options:

The current developed in opposite direction.

The EMF developed is negative now.

The current developed is lesser.

The EMF developed is higher.

Correct Answer:

The current developed is lesser.

Explanation:

The magnitude of the current is directly proportional to the velocity with which the bar magnet is brought closer or taken farther from the coil.