What are the laws of electromagnetic induction? Explain briefly.
Faraday’s First Law:
Faraday’s First Law of Electromagnetic Induction states that whenever a conductor is placed in a varying magnetic field, electromagnetic fields are induced known as induced emf. If the conductor circuit is closed, a current is also induced which are called induced current.
Ways of changing magnetic field: - 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.
Faraday’s Second Law: Faraday’s Second Law of Electromagnetic Induction states that the induced emf in a coil is equal to the rate of change of flux linkage. Here the flux is nothing but the product of a number of turns in the coil and flux connected with the coil.
Faraday’s law is represented as; ε=−NΔϕ/Δt
In any case, Faraday’s law today finds its application in most of the electrical machines, industries, and the medical field etc.
Additionally, there is another key law known as Lenz’s law that describes electromagnetic induction as well.
Faraday’s First Law:
Faraday’s First Law of Electromagnetic Induction states that whenever a conductor is placed in a varying magnetic field, electromagnetic fields are induced known as induced emf. If the conductor circuit is closed, a current is also induced which are called induced current.
Ways of changing magnetic field:- 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.
Faraday’s Second Law of Electromagnetic Induction states that the induced emf in a coil is equal to the rate of change of flux linkage. Here the flux is nothing but the product of a number of turns in the coil and flux connected with the coil.
Faraday’s law is represented as;| ε=−NΔϕ/Δt |
In any case, Faraday’s law today finds its application in most of the electrical machines, industries, and the medical field etc.
Additionally, there is another key law known as Lenz’s law that describes electromagnetic induction as well.
