When we rub a ballon on our hair and bring it near small bits of paper, the bits of paper get charged by ________

Options

A. Mass
B. Friction
C. Conduction
D. Induction

Answer

**Step-by-Step Solution:**

1. **Understanding the Process of Rubbing**: When we rub a balloon on our hair, we are engaging in a process called friction. This action causes electrons to move from one surface to another.

2. **Electron Transfer**: In this case, electrons are transferred from our hair to the balloon. This results in the balloon becoming negatively charged because it gains extra electrons.

3. **Effect on Nearby Objects**: When the negatively charged balloon is brought near small bits of paper, the electric field created by the balloon influences the bits of paper.

4. **Charging by Induction**: The bits of paper, which are neutral, experience a redistribution of their own charges due to the presence of the negatively charged balloon. The electrons in the paper are repelled away from the balloon, causing the side of the paper closest to the balloon to become positively charged.

5. **Attraction**: The positively charged side of the paper is attracted to the negatively charged balloon, causing the bits of paper to move towards the balloon.

6. **Conclusion**: Therefore, when we rub a balloon on our hair and bring it near small bits of paper, the bits of paper get charged by **induction**.

**Final Answer**: When we rub a balloon on our hair and bring it near small bits of paper, the bits of paper get charged by **induction**.

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