railway RRB JE (CBT I + CBT II) Mock Test 2024 Network Theory Magnetic Coupling Circuits Coefficient of Coupling
The coefficient of coupling of two coils is proportional to -
1
\( \frac{1}{{{{L_1}{L_2}} }}\)
2
L1L2
3
\({{\sqrt {{L_1}{L_2}} }}\)
4
\( \frac{1}{{\sqrt {{L_1}{L_2}} }}\)