Question
Download Solution PDFThe property where magnetic field of one of the coils makes the other coil to induce an EMF in it 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
\(M={μ N^2 A\over l}\)
where, μ = Permeability
N = No. of turns of the coil
A = Cross-sectional area of coil
l = Length of coil
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, \(L={N ϕ\over I}\)
where, L = Self-inductance
N = No. of turns of the coil
ϕ = Flux
l = Current
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