A coil of insulated copper wire is connected | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) According to the principle of electromagnetic induction,a current is induced in a coil when there is a change in the magnetic flux linked with it.

Vedclass · Accepted Answer

The galvanometer needle will show a deflection in the opposite direction.

Vedclass · Answer

(B) According to the principle of electromagnetic induction,a current is induced in a coil when there is a change in the magnetic flux linked with it.When a bar magnet is moved relative to a coil,the magnetic field lines passing through the coil change,inducing an electric current.When the bar magnet is withdrawn from inside the coil,the direction of the change in magnetic flux is reversed compared to when it was inserted.Consequently,a current is induced in the opposite direction,causing the galvanometer needle to deflect momentarily in the opposite direction.

$A$ coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is withdrawn from inside the coil?

Similar Questions

The magnetic field in a given region is uniform. Draw a diagram to represent it.

Two circular coils $A$ and $B$ are placed close to each other. If the current in the coil $A$ is changed,will some current be induced in the coil $B$? Give reason.

State whether the following statements are true $(T)$ or false $(F)$.
$(a)$ An electric motor converts mechanical energy into electrical energy.
$(b)$ An electric generator works on the principle of electromagnetic induction.

Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?

List the properties of magnetic field lines.

Vedclass Test Series

Exam Paper Generator

Online Exam Module