What is the difference between electromagnetic induction and magnetic induction?

Answer 1

Electromagnetism is first discovered by Oersted.

Electromagnetic induction first found by Michael Faraday.

Electromagnetism is the phenomenon in which magnetism is produced when electric current flows in a straight wire. This is the conversion of electrical energy into magnetic energy.

But electromagnetic induction is the phenomenon in which electric current is produced in a wire as it cuts the magnetic lines of force. Here in the presence of magnetic energy mechanical energy gets converted into electrical energy.

The former is applied in fans, motors etc.

The later is utilised in generators.

In an electrical bell, electromagnetism plays an important role.

In case of choke, electromagnetic induction serves in a nice way.

Former has Biot-Savart law, Ampere's circuital law, Lorentz force law, Fleming's left hand rule, Right hand thumb rule.

The latter has Faraday's laws, Lenz law, Fleming's right hand rule.

Answer 2

you might have learned a lot about electric circuit. you must be knowing Ohm's law. where there is a simple equation.

V=I*R

where V= potential difference across a resistor.

I= current flowing through the resistor

R= resistance

thus we can write this equation in this manner as well

I=V/R (1)

There is similarity in between electric circuit and magnetic circuit.

@=AT/S (2)

@= magnetic flux

AT= total ampere turns

S= reluctance of the magnetic path

Here you can see that when we compare 1 and equation 2 there seems a lot of similarity in between them. in equation no.2 @ is working as I in equation no. 1.

S reluctance is working as R in equation no. 1

But what are the difference in between them.As both of them seems to be similar but they are different from each others.

1. Electrons flow in resistance or wire when electric current flows in it. But there is not such flow in magnetic flux. Actually there is establishment of magnetic flux in the space where they had to be spread.

2. Till there is flow of electric current in the resistor there shall be loss of energy through the resistor. But in case of magnetic flux there is no loss of energy it is just established in the space.

Answer 3

Magnetic induction and electromagnetic induction are used pretty much interchangably. Magnetic induction is really electromagnetic induction. One of the four fundamental forces in the universe is the electromagnetic force. Not the electrical force or the magnetic force, but the electromagnetic force. And magnetic induction is just another term for electromagnetic induction.