A charge of `+1C` is placed at the centre of a spherical shell of radius 10cm. What will be the work done in moving a charge of `+1 muC` on its surface through a distance of 5 cm?

Explanation

To solve the problem, we need to determine the work done in moving a charge of +1 µC on the surface of a spherical shell with a radius of 10 cm, while a charge of +1 C is placed at the center.

### Step-by-Step Solution:

1. **Understanding the Setup**:
- We have a charge of +1 C located at the center of a spherical shell with a radius of 10 cm.
- We need to move a charge of +1 µC (which is equal to \(1 \times 10^{-6}\) C) on the surface of this shell.

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