How Michael Faraday discovered electromagnetic induction?

Answer 1

Move a magnet into a coil, and a voltage is induced into that coil, causing a galvanometer to deflect. Withdraw the magnet, and the galvanometer will deflect in the opposite direction, indicating that the induced voltage depends upon the direction of motion of the magnet.

Answer 2

THE MAGNITUDE OF INDUCED E.M.F. IN A CIRCUIT IS EQUAL TO THE TIME RATE OF CHANGE OF MANETIC FLUX THROUGH THE CIRCUIT. THE MAGNITUDE OF INDUCED E.M.F. IN A CIRCUIT IS EQUAL TO THE TIME RATE OF CHANGE OF MANETIC FLUX THROUGH THE CIRCUIT.

Answer 3

a quantitative relationship between a changing magnetic field and the electric field created by the change, developed on the basis of experimental observations made in 1831 by the English scientist Michael Faraday

Answer 4

faraday's law electro magnetic induction states that-when ever conductors cut the flux or flux cuts the conductor ,emf is induced in the conductor.

thats e=-ndr/dt

where

n-no. of turns of the conductor.

dr/dt->rate of change of flux linked with the conductor

-ve sign is due to lenze's law.

Answer 5

Faraday's law deals with the induction of emf in an electrical circuit when the magnetic flux linked with the circuit changes.

Faraday's law of induction

They are stated as follows

1. Whenever magnetic flux liked with a circuit changes, an emf is induced in it.

2. The induced emf exist in the circuit so long as the change in magnetic flux linked with it continues.

3. The induced emf is directly proportional to the negative rate of change of magnetic flux linked with the circuit.

If change in magnetic flux linked with a circuit, that takes place in a time dt.

Rate of change of magnetic flux

= change in magnetic flux / dt

If E is emf induced in the circuit as a result of change,

E proportional to

(-change in magnetic flux / dt)

So, E= - change in magnetic flux / dt

By selecting unit of E, magnetic flux, t in a proper way, we can have K= 1

Now we can write

E= -change in magnetic flux / dt

Negative sign is due to direction of induced emf.

Answer 6

The principle of electromagnetic induction shows the relationship between electric circuit and magnetic field. It was formulated by Michael Faraday in 1831.

Answer 7

The genrated emf is directly proportional to the rate of change of flux

Answer 8

nothing