For magnetically isolated coils, the value of coefficient of coupling is:
For magnetically isolated coils, the value of coefficient of coupling is:
Right Answer is: 0
SOLUTION
Coefficient of coupling is given by
$k = \frac{M}{{\sqrt {{L_1}{L_2}} }}$
Where
L1 and L2 = self-inductance
M = Mutual inductance
For isolated coil, M = 0
Coefficient of coupling will be
$k = \frac{0}{{\sqrt {{L_1}{L_2}} }}$
As the coil is magnetically isolated so its coefficient of coupling will be zero. K = 0