engineering recuitment CSPTCL JE Electrical Mock Test 2023 Network Theory Magnetic Coupling Circuits Mutual Inductance
The self inductance of two coils are 4mH and 9mH respectively. If the coefficient of coupling is 0.5, the mutual inductance between the coils is _____
1
6.5 mH
2
18 mH
3
3 mH
4
12.5 mH