What is Electromagnetic Induction?

Assume you go cashless when shopping and your parents utilize credit cards. The card is always scanned or swiped by the shopkeeper. The shopkeeper does not photograph or touch the card. However, he swipes/scans it. How does this swiping of the card remove money? This is due to a phenomenon known as ‘Electromagnetic Induction.’

Is it possible for moving things to generate electric currents? How can you tell whether there’s a connection between electricity and magnetism? Consider what life would be like if there were no computers, phones, or electricity. Faraday’s experiments resulted in the development of generators and transformers.

The induction of an electromotive force by the passage of a conductor through a magnetic field or by a change in magnetic flux in a magnetic field is known as electromagnetic induction.

This happens when a conductor is placed in a moving magnetic field or when it moves in a fixed magnetic field.

Michael Faraday discovered this electromagnetic induction rule. He put up a leading wire similar to the diagram above, which he linked to a device that measured the voltage across the circuit. The voltage in the circuit is measured when a bar magnet passes through the device. The significance of this is that it is a method of creating electrical energy in a circuit by employing magnetic fields rather than batteries. The principle of electromagnetic induction is used by devices such as generators, transformers, and motors.

Check: Problems on Electromagnetic Induction

Electromagnetic Induction, often known as induction, is a process in which a conductor is placed in a certain position and the magnetic field varies or remains stationary as the conductor moves. A voltage or EMF (Electromotive Force) is created across the electrical conductor as a result of this.

Michael Faraday was credited for the discovery of electromagnetic induction in 1831 and he also gave the Law of Induction based on the experiments he performed. Independent of this discovery Joseph Henry also discovered a similar phenomenon in 1832.