Consider Two metallic charged sphere whose radii are 20 cm and 10 cm respectively each having 150 microcoulomb positive charge. What is their common potential after they are connected by a conducting wire ?

Explanation

To find the common potential of the two metallic charged spheres after they are connected by a conducting wire, we can follow these steps:

### Step 1: Understand the Problem
We have two metallic spheres:
- Sphere 1 (smaller) with radius \( R_1 = 10 \, \text{cm} = 0.1 \, \text{m} \) and charge \( Q_1 = 150 \, \mu C = 150 \times 10^{-6} \, C \)
- Sphere 2 (larger) with radius \( R_2 = 20 \, \text{cm} = 0.2 \, \text{m} \) and charge \( Q_2 = 150 \, \mu C = 150 \times 10^{-6} \, C \)

### Step 2: Set Up the Equations for Potential
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