Question

Mutual inductance between two magnetically coupled coils depends on

• A. permeability of core.
• B. the number of their turns.
• C. cross sectional area of their common core.
• D. all of above.

Answer 1

The correct option is D all of above.

The expression of the mutual inductance between two magnetically coupled coil is as follows
Where, $\mu$r- Permeability of core
N - The number of their turns
A - Cross-sectional area of their common core
Hence, the mutual inductance depends on the all of the above factors.