Which of the following option(s) is correct?

Options

A. A positively charged body can attract another positively charged body
B. Induced charge can never be greater than inducing charge
C. A positively charged body can attract uncharged metal body
D. All of these

Answer

To determine which of the given options is correct, we will analyze each statement one by one based on the principles of electrostatics.

### Step-by-Step Solution:

1. **Analyze the First Option:**
- The statement claims that a positively charged body can attract another positively charged body.
- Generally, like charges repel each other. However, in the context of atomic nuclei, two positively charged protons can exhibit attraction due to the strong nuclear force, which is much stronger than electrostatic forces at very short distances.
- **Conclusion:** This option is correct under specific conditions (nuclear forces).

2. **Analyze the Second Option:**
- The statement asserts that induced charge can never be greater than the inducing charge.
- When a charged body induces a charge on a neutral conductor, the induced charge will always be equal to or less than the inducing charge. For example, if a positive charge induces negative charges on a neutral metal sphere, the amount of negative charge will not exceed the amount of positive charge that is inducing it.
- **Conclusion:** This option is correct.

3. **Analyze the Third Option:**
- The statement indicates that a positively charged body can attract an uncharged metal body.
- A positively charged body will attract the negative charges within an uncharged conductor. This results in a redistribution of charges, where negative charges move closer to the positive charge, leading to an attractive force.
- **Conclusion:** This option is correct.

4. **Final Conclusion:**
- All three options presented are correct based on the principles of electrostatics. Therefore, the answer to the question is that all options are correct.