Two identical charged particles each having a mass 10 g and charge `2.0 xx 10^(-7)` C are placed on a horizontal table with a separation of L between them such that they stay in limited equilibrium. If the coefficient of friction between each particle and the table is 0.25, find the value of L. (Use g `= 10 ms^(-2)`)

Options

A. 12 cm
B. 10 cm
C. 8 cm
D. 5 cm

Explanation

To find the separation \( L \) between the two identical charged particles in limited equilibrium, we need to balance the electrostatic force of repulsion with the frictional force that resists their motion.

### Step-by-Step Solution:

1. **Identify the Forces:**
- Electrostatic force of repulsion between the two charges: \( F_e \)
- Frictional force resisting the motion: \( F_f \)

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