A ring of radius R having unifromly distributed charge Q is mounted on a rod suspended by two identical strings. The tension in strings in equilibrium is `T_0.` Now a vertical magnetic field is switched on and ring is rotated at constant angular velocity `omega`. Find the maximum `omega` with which the ring can be rotated if the strings can withstand a maximum tension of `3T_0 //2.`

Explanation

`(a) sin theta=(L)/(R)` But `R=(mv)/(qB)impliessin theta((LqB)/(mv))`
`(b)` In this case, Width `gt` Radius Now `t=(pi)/(omega)`