Question

give the experimental explanation of electromagnetic induction.?​

Answer 1

Answer:

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Give the experimental explanation of electromagnetic induction.?

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→ Number of experiments were performed by Faraday and Henry to realise the concept of electromagnetic induction.

Some of these experiment are explained as :

Note : Check the necessary diagrams provided with the answer for different (1) and (2) positions.

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1). When a coil is connected to a galvanometer (G) and a bar magnet is moved towards the coil , the pointer shows deflection. The deflection continues till the magnet is in motion, on reversing the direction of motion of magnet, galvanometer shows deflection but in opposite direction. The deflection in galvanometer shows rapid change, when magnet is moved with rapid speed. On keeping the magnet fixed and moving coil across the axis of magnet then again deflection in galvanometer is observed.

» It is concluded that the relative motion betweetn the coil and magnet is responsible for generation of electric current in the coil.

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2). ) In other experiment, bar magnet is replaced by a coil C1 connected to a battery. On moving coil C2 towardss C1 again deflection is observed in C1 and on moving coil in opposite direction than earlier one, the deflection is observed in opposite direction and same results are obtained when C2 is kept fixed and C1 is moved.

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Hope it helped u.

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Answer 2

Take a pipe which is wound around with a wire and attach a galvanometer to it then take a bar magnet and and move the bar magnet towards it, you will notice that whenever the bar magnet is in motion deflection will be observed in galvanometer this shows that current is induced in the coil and when the direction of the bar magnet is reversed direction of the deflection in the galvanometer also reverses. But the deflection is only seen until the bar magnet is motion as soon as the bar magnet is stopped there is no deflection. If in place of bar magnet the coil is set in motion deflection will be observed. Therefore we can conclude that the relative motion between the coil and the bar magnet is responsible for induction of current in the coil.

This shows that whenever there is a change in the number of magnetic flux and EMF is induced. This phenomenon is known as electromagnetic induction