Question
Download Solution PDFA coil with a self-inductance of 5 H is coupled with another coil having a self-inductance of 20 H in such a way that the mutual inductance is 8 H. Find the coefficient of coupling.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCoefficient of coupling
The coupling coefficient can be defined as a magnetic flux produced between two different coils while managing the flux successfully.
\(k={M\over \sqrt{L_1L_2}}\)
where, k = Coefficient of coupling
M = Mutual inductance
L1 and L2 = Self-inductance of two coils
Calculation
Given, L1 5H & L2 = 20 H
M = 8 H
\(k={8\over \sqrt{5\times 20}}\)
k = 0.8
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