A particle of charge `q_(1)` and mass m is revolving around a fixed negative charge of magnitude `q_(2)` in a circular path of radius r. Find the time period of revolution.

Explanation

To find the time period of revolution of a particle of charge \( q_1 \) and mass \( m \) revolving around a fixed negative charge \( q_2 \) in a circular path of radius \( r \), we can follow these steps:

### Step 1: Identify the Forces Acting on the Particle
The particle with charge \( q_1 \) experiences a centripetal force due to the electrostatic attraction towards the fixed charge \( q_2 \). The electrostatic force \( F \) between the two charges can be given by Coulomb's law:

\[ F = \frac{1}{4 \pi \epsilon_0} \frac{|q_1 q_2|}{r^2} \]
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