Question

Explain faraday's law of induction with the help of activity.

Answer 1

There are two laws of Faraday’s electromagnetic induction.
Faraday's law of electromagnetic induction otherwise called Faraday's law is the fundamental law of electromagnetism which encourages us to foresee how a magnetic field would cooperate with an electric circuit to deliver an electromotive force.

Complete step by step solution:
Faraday's law of electromagnetic induction
i) Whenever there is an adjustment in the magnetic flux connected with the loop and emf is actuated.

ii) The induced emf is equal to the rate of change of magnetic flux with respect to time.

$\varepsilon = \dfrac{{ - d\phi }}{{dt}}$
The negative sign gives the direction of the induced emf.
The induced emf’s direction will be opposite to that of the flux change.

Explanation of Faraday’s law with an activity:
First we associate the terminals of a loop to sensitive ammeters.
At that point we push a bar magnet towards a loop, with its north pole towards the coil, the needle in the galvanometer deflects.

It shows that current is set up in the coil.

The galvanometer doesn't deflect if the magnet is very still.

On the off chance that the magnet is moved away from the coil the needle in the galvanometer deflects in the opposite way.

Further this activity lets us to comprehend that the general movement of the magnet and loop set up a current in the coil. It has no effect whether the magnet is moved towards the coil. This is one type of Faraday's law.

Note: While performing Faraday's experiment we should note that the circuit is not connected to any source of battery or power that may induce an emf. Also the galvanometer should be sensitive.