Question:
The induced emf in a coil is independent of
The induced emf in a coil is independent of
Updated On: Jul 7, 2022
- number of turns
- resistance of the coil
- rate of change of flux
- none of the above.
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The Correct Option is B
Solution and Explanation
$E = \frac{d \phi}{dt}$, where $\phi = nBA$ . Thus $\varepsilon$ is independent of resistance of the coil
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Notes on Faradays laws of induction
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:
∈\(-N {\triangle \phi \over \triangle t}\)
