Question

Explain faraday's law of electromagnetic induction? Show with the help of
diagram,how the movement of a magnet towards or away from a coil carrying
a galvanometer is produce current? Also state the rule used in the above coil
to find the direction of current. ​

Answer 1

Answer:

Faraday’s Laws of Electromagnetic Induction

Faraday’s Laws of Electromagnetic Induction consists of two laws. The first law describes the induction of emf in a conductor and the second law quantifies the emf produced in the conductor. In the next few sections, let us learn these laws in detail.

Faraday’s First Law of Electromagnetic Induction

The discovery and understanding of electromagnetic induction are based on a long series of experiments carried out by Faraday and Henry. From the experimental observations, Faraday arrived at a conclusion that an emf is induced in the coil when the magnetic flux across the coil changes with time. With this in mind, Faraday formulated his first law of electromagnetic induction as,

Whenever a conductor is placed in a varying magnetic field, an electromotive force is induced. If the conductor circuit is closed, a current is induced which is called induced current.Changing the Magnetic Field Intensity in a Closed Loop

Faraday's Law

Magnetic field intensity in a closed loop

Mentioned here are a few ways to change the magnetic field intensity in a closed loop:

By rotating the coil relative to the magnet.

By moving the coil into or out of the magnetic field.

By changing the area of a coil placed in the magnetic field.

By moving a magnet towards or away from the coil.