Q6: Two mutually coupled coils, A and B, are connected in series to a 360 V d.c. supply. Coil A has a resistance 6 52 and an inductance 4 H. Coil B has a resistance 112 and inductance 9 H. At a certain instant after the circuit is energized. The current is 10 A increasing at the rate 10 A/sec. calculate: (a) The mutual inductance between the coils. (b) The coefficient of coupling.

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Q6: Two mutually coupled coils, A and B, are connected in series to a 360 V d.c.
supply. Coil A has a resistance 6 52 and an inductance 4 H. Coil B3 has a resistance
112 and inductance 9 H. At a certain instant after the circuit is energized. The
current is 10 A increasing at the rate 10 A/sec. calculate:
(a) The mutual inductance between the coils.
(b) The coefficient of coupling.
Transcribed Image Text:Q6: Two mutually coupled coils, A and B, are connected in series to a 360 V d.c. supply. Coil A has a resistance 6 52 and an inductance 4 H. Coil B3 has a resistance 112 and inductance 9 H. At a certain instant after the circuit is energized. The current is 10 A increasing at the rate 10 A/sec. calculate: (a) The mutual inductance between the coils. (b) The coefficient of coupling.
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