A coil of metal wire is kept stationary in a non-uniform magnetic field. An e.m.f. Is induced in the coil.

Explanation

To analyze the situation described in the question, we need to understand the principles of electromagnetic induction, particularly how an electromotive force (e.m.f.) is induced in a coil of wire when it is placed in a magnetic field.

### Step-by-Step Solution:

1. **Understanding the Magnetic Field**:
- A non-uniform magnetic field means that the strength and direction of the magnetic field vary from one point to another.

2. **Induced e.m.f. in a Coil**:
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