Name two factors on which mutual inductance between a pair of coils depends?

Explanation

To determine the two factors on which mutual inductance between a pair of coils depends, we can analyze the formula for mutual inductance (M):

### Step-by-Step Solution:

1. **Understanding Mutual Inductance**:
Mutual inductance (M) is a measure of the ability of one coil to induce an electromotive force (EMF) in another coil when the current in the first coil changes.

2. **Formula for Mutual Inductance**:
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