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1. |
When two coupled coils of equal self-inductance are connected in series in one way the net inductance is 20 mH and when they are connected in the other way, the net inductance is 12 mH. The maximum value of net inductance when they are connected in parallel is __________ |
A. | 2 mH |
B. | 5 mH |
C. | 4 mH |
D. | 6 mH |
Answer» C. 4 mH | |