Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other. While a negatively charged rod is held near, but not touching sphere A, someone moves ball B away from A. How will the spheres be charged, if at all? B Sphere A Sphere B 0 0 0 +1 +

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**Charging Conducting Spheres**

Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other. While a negatively charged rod is held near, but not touching sphere A, someone moves ball B away from A. How will the spheres be charged, if at all?

*Diagram Description*: In the diagram, a negatively charged rod is shown near sphere A, but not in contact with it. The spheres A and B are in contact initially, but ball B is then moved away from A. 

**Charge Notations**:
- Sphere A (left sphere)
- Sphere B (right sphere)

**Possible Charge Configurations**:
1. Sphere A: 0  | Sphere B: 0
   - Both spheres remain uncharged.

2. Sphere A: 0  | Sphere B: +
   - Sphere A is uncharged, and Sphere B is positively charged.

3. Sphere A: +  | Sphere B: -
   - Sphere A is positively charged, and Sphere B is negatively charged.

4. Sphere A: -  | Sphere B: 0
   - Sphere A is negatively charged, and Sphere B is uncharged.

5. Sphere A: -  | Sphere B: +
   - Sphere A is negatively charged, and Sphere B is positively charged.

**Explanation**:
The action of holding a negatively charged rod near sphere A will induce a separation of charges in spheres A and B. The negative charges in the rod repel the electrons in sphere A to sphere B, leaving sphere A positively charged and sphere B negatively charged. However, when ball B is moved away, the charges will separate, leaving sphere B negatively charged and sphere A positively charged.
Transcribed Image Text:**Charging Conducting Spheres** Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other. While a negatively charged rod is held near, but not touching sphere A, someone moves ball B away from A. How will the spheres be charged, if at all? *Diagram Description*: In the diagram, a negatively charged rod is shown near sphere A, but not in contact with it. The spheres A and B are in contact initially, but ball B is then moved away from A. **Charge Notations**: - Sphere A (left sphere) - Sphere B (right sphere) **Possible Charge Configurations**: 1. Sphere A: 0 | Sphere B: 0 - Both spheres remain uncharged. 2. Sphere A: 0 | Sphere B: + - Sphere A is uncharged, and Sphere B is positively charged. 3. Sphere A: + | Sphere B: - - Sphere A is positively charged, and Sphere B is negatively charged. 4. Sphere A: - | Sphere B: 0 - Sphere A is negatively charged, and Sphere B is uncharged. 5. Sphere A: - | Sphere B: + - Sphere A is negatively charged, and Sphere B is positively charged. **Explanation**: The action of holding a negatively charged rod near sphere A will induce a separation of charges in spheres A and B. The negative charges in the rod repel the electrons in sphere A to sphere B, leaving sphere A positively charged and sphere B negatively charged. However, when ball B is moved away, the charges will separate, leaving sphere B negatively charged and sphere A positively charged.
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