Question

The mutual inductance M12 of a coil 1 with respect to coil 2

• A. Increases when they are brought nearer.
• B. Depends on the current passing through the coils.
• C. Increases when one of them is rotated about an axis.
• D. Both (1) and (2) are correct.

Answer 1

Answer: (A)

Increases when they are brought nearer.

Answer 2

The mutual inductance $M_{12}$of Coil 1 with respect to coil 2 increase when they are brought nearer.