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A thin non-conducting ring of mass `m` carrying a charge `q` can freely rotate about its axis. At `t = 0`, the ring was at rest and no magnetic field was present. Then suddenly a magnetic field `B` was set perpendicular to the plane. Find the angular velocity acquired by the ring.

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To find the angular velocity acquired by a thin non-conducting ring of mass `m` carrying a charge `q` when a magnetic field `B` is suddenly applied perpendicular to the plane of the ring, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the System**: - We have a thin non-conducting ring of mass `m` and charge `q`. - The ring can rotate freely about its axis. - At time `t = 0`, the ring is at rest, and no magnetic field is present. ...
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