If a glass rod is rubbed with silk, it acquires a positive charge because :

Options

A. protons are added to it
B. protons are removed from it
C. electrons are added to it
D. electrons are are removed from it.

Answer

To solve the question of why a glass rod acquires a positive charge when rubbed with silk, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding Charge Basics**:
- Every object has a neutral charge when it has an equal number of protons (positive charge) and electrons (negative charge).

2. **Rubbing Process**:
- When a glass rod is rubbed with silk, friction occurs between the two materials.

3. **Electron Movement**:
- During this rubbing process, electrons (which are negatively charged) are transferred from the glass rod to the silk cloth.

4. **Resulting Charges**:
- As the glass rod loses electrons, it has more protons than electrons, resulting in a net positive charge on the glass rod.
- Conversely, the silk cloth gains these electrons, leading to a net negative charge on the silk.

5. **Conclusion**:
- Therefore, the glass rod acquires a positive charge because it loses electrons to the silk cloth during the rubbing process.

### Final Answer:
The glass rod acquires a positive charge because it loses electrons to the silk when they are rubbed together.

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