Two inductors of 5 H and 4 H have a mutual inductance of 2.5 H between them. The coupling coefficient is
Two inductors of 5 H and 4 H have a mutual inductance of 2.5 H between them. The coupling coefficient is
Right Answer is:
0.56
SOLUTION
Given
L1 = 5H
L2 = 4H
M = 2.5H
The coupling coefficient of Inductor is given as
$\begin{array}{l}K = \dfrac{M}{{\sqrt {{L_1}{L_2}} }}\\\\K = \dfrac{{2.5}}{{\sqrt {5 \times 4} }}\end{array}$
K = 2.5/√20
K = 0.56H