railway RRB JE (CBT I + CBT II) Mock Test 2024 Network Theory Magnetic Coupling Circuits Mutual Inductance
Two coils having self- inductance of 10 mH and 15 mH give an effective inductance of 20 mH when connected in series opposition. What will be the effective inductance if they are connected in series aiding?
1
80 mH
2
30 mH
3
60 mH
4
40 mH