Question

2.
There are two coils A and B separated by some distance. If a current of 2 A flows through A, a
magnetic flux of 102 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?
(A)5 x 10-3 Wb (B) 2 x 10-3 Wb (C) 4 x 10-3 Wb (D) 10 x 10-3 Wb​

Answer 1

Answer:

Mutual inductance = 10-2/2=5mH

Flux = 5 ×10–3 ×1

=5 ×10–3Wb.

so answer is ( A) 5×10-3