SCIENCE (ELECTROMAGNETIC INDUCTION)

Electromagnetic Induction or Induction is a process in which a conductor is put in a particular position and magnetic field keeps varying or magnetic field is stationary and a conductor is moving. This produces a Voltage or  EMF (Electromotive Force) across the electrical conductor. Michael Faraday discovered Law of Induction in 1830. 

Through his experiment, he discovered that there are certain factors that influence this voltage production. They are:

1. Number of Coils: The induced voltage is directly proportional to the number of turns/coils of the wire. Greater the number of turns, greater is voltage produced
2. Changing Magnetic Field: Changing magnetic field affects the induced voltage. This can be done by either moving the magnetic field around the conductor or moving the conductor in the magnetic field.

ELECTROMAGNETIC INDUCTION APPLICATIONS:

Based on his experiments we now have Faraday’s law according to which the amount of voltage induced in a coil is proportional to the number of turns of the coil and the rate of changing magnetic field.

• AC generator works on the principle of electromagnetic induction.
• The working of electrical transformers are based on the electromagnetic induction.
• The magnetic flow meter is based on the electromagnetic induction.