There are two coils A and B seperated 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 1 A passes through B, what is the flux through A?

Explanation

To solve the problem step-by-step, we will use the concept of mutual inductance and the relationship between current and magnetic flux.

### Step 1: Understand the given information
We have two coils, A and B, separated by some distance.
- When a current of 2 A flows through coil A, a magnetic flux of \(10^{-2}\) Wb passes through coil B.
- When no current flows through coil A and a current of 1 A flows through coil B, we need to find the magnetic flux through coil A.

### Step 2: Calculate the mutual inductance (M)
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