A particle of mass m carrying a charge `-q_(1)` starts moving around a fixed charge `+q_(2)` along a circulare path of radius r. Find the time period of revolution T of charge `-q_(1)`.

Explanation

To find the time period of revolution \( T \) of the charge \( -q_1 \) moving in a circular path around the fixed charge \( +q_2 \), we can follow these steps:

### Step 1: Identify the forces acting on the charge
The charge \( -q_1 \) experiences a centripetal force due to the electrostatic attraction towards the fixed charge \( +q_2 \). According to Coulomb's law, the electrostatic force \( F \) between the two charges is given by:

\[ F = \frac{k |q_1| |q_2|}{r^2} \]
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