How does a body get charged in the process of charging by friction?

Explanation

### Step-by-Step Solution:

1. **Understanding Charging by Friction**: Charging by friction is a process where two different materials are rubbed against each other, leading to a transfer of charge.

2. **Selection of Bodies**: Consider two bodies (let's call them Body A and Body B) that are made of different materials.

3. **Rubbing the Bodies Together**: When these two bodies are rubbed together, they come into contact, and friction occurs between their surfaces.

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