Question:
The statement "Polarity of induced emf is such that it tends to produce a current which opposes the change in magnetic flux that produced it" is known as
The statement "Polarity of induced emf is such that it tends to produce a current which opposes the change in magnetic flux that produced it" is known as
Updated On: Aug 1, 2022
- Faraday's law
- Gauss's law
- Coulomb's law
- Lenz's law
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The Correct Option is D
Solution and Explanation
Lenz's law gives the direction of induced emf/ induced current. According to this law, the direction of induced emf or current in a circuit is such as to oppose the cause that produces it.
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Concepts Used:
Faradays Laws of Induction
There are two laws, given by Faraday which explain the phenomena of electromagnetic induction:
Faraday's First Law:
Whenever a conductor is placed in a varying magnetic field, an emf is induced. If the conductor circuit is closed, a current is induced, known as the induced current.
Faraday's Second Law:
The Emf induced inside a coil is equal to the rate of change of associated magnetic flux.
This law can be mathematically written as:
∈\(-N {\triangle \phi \over \triangle t}\)
