Question
Download Solution PDFIn case of electromagnetic induction, two coils are arranged in such a way that a change in one coil causes an EMF to be induced in the other coil. This is called ________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFMutual Inductance
When two coils are arranged in such a way that a change of current in one coil causes an EMF to be induced in the other, the coils are said to have mutual inductance.
The mutual inductance is denoted letter M and measured in Henry.
Induced EMF in the coil, \(e=M{di\over dt}\)
Here, M represents the mutual inductance
\(M={μ N^2 A\over l}\)
Self Inductance
Self-inductance is the property of the current-carrying coil that resists or opposes the change of current flowing through it. This occurs mainly due to the self-induced emf produced in the coil itself.
Self-inductance, \(L={\psi\over I}={Nϕ\over I}\)
where, N = No. of turns of the coil
ϕ = Flux
l = Current
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