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The coefficient of mutual inductance of two circuits A and B is 3 milli Henry and theri respective resistances are 10 ohm and 4 ohm. How much current should change in 0.02 seconds in circuit A, so that the induced current it B should be 0.006 A?

The coefficient of mutual inductance of two circuits A and B is 3 milli Henry and theri respective resistances are 10 ohm and 4 ohm. How much current should change in 0.02 seconds in circuit A, so that the induced current it B should be 0.006 A?

Grade:12

1 Answers

Vikas TU
14149 Points
5 years ago
write kvl for the circuit.
- Mdi/dt  – iR1  = 0
integerating both sides,
.i.e.
Mdi/dt = -i*10
or
0.03* di/dt = -10i
di/i = -1000dt/3
logi = -1000t/3 + c
write simlar for B coil and eliminate c.

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