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Grade: 12

                        

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?

4 years ago

Answers : (1)

Vikas TU
12154 Points
							
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.
4 years ago
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