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There are two coils A and B separated by some distance. If a current of 2 A flows through A, a magnetic flux of 10-2 Wb passes through B (no current through B). If no current passes through A and a current of 1 A passes through B, what is the flux through A?
There are two coils A and B separated by some distance. If a current of 2 A flows through A, a magnetic flux of 10-2 Wb passes through B (no current through B). If no current passes through A and a current of 1 A passes through B, what is the flux through A?
CBSE | Class 12 | Electromagnetic Induction | ncert exemplar | Physics
There are two coils A and B separated by some distance. If a current of 2 A flows through A, a magnetic flux of 10-2 Wb passes through B (no current through B). If no current passes through A and a current of 1 A passes through B, what is the flux through A?

The current flowing through the coil is denoted by Ia.

Mutual induction between A and B is known as Mab.

The number of turns in coil A is Na.

The number of turns in coil B is Nb.

an is the flux associated with coil A as a result of coil B.

b is the flux associated with coil B as a result of coil A.

B = M22 = MabI1=5mH is the total flow.

Total flow via A = Maϕa = MabI1 = 5mWb

dI/dt = 0 when the emf is 40 seconds.

i

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