Variation of magnetic field through a coil of area 4 m2 is shown in figure. What is the EMF induced in the coil (in mV)?
Variation of magnetic field through a coil of area 4 m2 is shown in figure. What is the EMF induced in the coil (in mV)?
- 8
- 16
- 4
- 2
The Correct Option is A
Solution and Explanation
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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:
∈\(-N {\triangle \phi \over \triangle t}\)
