Two identical coils, one of copper and the other of iron, are rotated with the same angular velocity `omega` in a uniform magnetic field. In which case the induced e.m.f. is more and why?

Explanation

To determine which coil, copper or iron, has a greater induced electromotive force (e.m.f.) when rotated in a uniform magnetic field with the same angular velocity, we can analyze the situation step by step.

### Step-by-Step Solution:

1. **Understanding the Setup**:
- We have two identical coils: one made of copper and the other made of iron.
- Both coils are rotated in a uniform magnetic field with the same angular velocity, denoted as `ω`.

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