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A tiny charged sphere of charge q is suspended by a string of length l between two parallel plates. Its oscillation period without any electric field is T0. When the plates are given charge, the period becomes T. What is the value of the ratio T/T0?
- ((g + qE/m) / g)^(1/2)
- (g / (g + qE/m))^(1/2)
- (g / (g + qE/m))^(3/2)
- None of these
Correct answer: None of these
Solution
The correct option is 'None of these' because the oscillation period of the charged sphere in an electric field is influenced by both gravitational and electric forces, leading to a more complex relationship than those presented in the other options.
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