Question

with the help of an activity explain the phenomenon of electromagnetic induction​

Answer 1

Answer:

Induction of electric current in the coil is the cause of deflection in galvanometer needle. If the magnet is kept stationary and coil is moved; then also the galvanometer needle shows deflection. It can be concluded that when the coil and the bar magnet are in relative motion, a current is induced in the coil.

hope this help you

Answer 2

PROCEDURE:-

• Make a circular loop of conducting wire and connect a galvanometer with it to record the presence of electric current, as shown in figure below.

• Make a circular loop of conducting wire and connect a galvanometer with it to record the presence of electric current, as shown in figure below.Take a bar magnet and keep it stationary near the loop. The galvanometer does not show any deflection (fig a), which means no current is produced in the loop.

• Make a circular loop of conducting wire and connect a galvanometer with it to record the presence of electric current, as shown in figure below.Take a bar magnet and keep it stationary near the loop. The galvanometer does not show any deflection (fig a), which means no current is produced in the loop.Next, move the North pole of the magnet rapidly towards the loop. The galvanometer deflects to one side showing the presence of electric field (fig b).

• Make a circular loop of conducting wire and connect a galvanometer with it to record the presence of electric current, as shown in figure below.Take a bar magnet and keep it stationary near the loop. The galvanometer does not show any deflection (fig a), which means no current is produced in the loop.Next, move the North pole of the magnet rapidly towards the loop. The galvanometer deflects to one side showing the presence of electric field (fig b).Then take the magnet away from the loop rapidly. Again the galvanometer shows deflection indicating the presence of current, but in opposite direction (fig c).

• Make a circular loop of conducting wire and connect a galvanometer with it to record the presence of electric current, as shown in figure below.Take a bar magnet and keep it stationary near the loop. The galvanometer does not show any deflection (fig a), which means no current is produced in the loop.Next, move the North pole of the magnet rapidly towards the loop. The galvanometer deflects to one side showing the presence of electric field (fig b).Then take the magnet away from the loop rapidly. Again the galvanometer shows deflection indicating the presence of current, but in opposite direction (fig c).In the same way if South Pole of the magnet is taken, the deflection in the galvanometer will be opposite to both the above mentioned cases.

Conclusion:

From the above observation it is clear that whenever there is a relative motion between the coil and the magnet, a current is induced in the coil due to change in the magnetic flux linked with it.

From the above observation it is clear that whenever there is a relative motion between the coil and the magnet, a current is induced in the coil due to change in the magnetic flux linked with it.This phenomenon is known as electromagnetic induction.