A ring of mass m and radius R is given a charge q. It is then rotated about its axis with angular velocity `omega`.Find
(ii) Magnetic field produced at the centre of ring.

Explanation

To find the magnetic field produced at the center of a rotating charged ring, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Problem**: We have a ring of mass \( m \) and radius \( R \) that carries a charge \( q \) and rotates about its axis with an angular velocity \( \omega \). We need to find the magnetic field at the center of the ring.

2. **Determine the Current**: When the ring rotates, the charge \( q \) creates a current. The current \( I \) can be defined as the charge \( q \) passing a point in one complete revolution (which is the time period \( T \)).
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