Which of thoe folowing option is correct

Options

A. The total number of charged particles in the universe remains conserved
B. The magnitude of total positive charge of the universe is constant
C. The magnitude of total negative charge of the universe is constant
D. The total charge of the universe is constant

Answer

To solve the question regarding which option is correct about the charge in the universe, we will analyze each option based on the law of conservation of charge.

### Step-by-Step Solution:

1. **Understanding the Law of Conservation of Charge**:
- The law of conservation of charge states that the total electric charge in an isolated system remains constant over time. This means that charge cannot be created or destroyed; it can only be transferred from one part of the system to another.

2. **Analyzing Option 1**:
- **Option 1** states that the total number of charged particles in the universe remains conserved.
- This is not entirely accurate because while the total charge is conserved, the number of charged particles can change as particles can annihilate each other or pair up to form neutral particles.

3. **Analyzing Option 2**:
- **Option 2** states that the magnitude of total positive charge of the universe is constant.
- This is misleading because while the total charge is conserved, the balance between positive and negative charges can change. Therefore, the total positive charge alone is not necessarily constant.

4. **Analyzing Option 3**:
- **Option 3** states that the magnitude of total negative charge of the universe is constant.
- Similar to Option 2, while negative charge can exist, the overall conservation law applies to the total charge, not just the negative charge.

5. **Analyzing Option 4**:
- **Option 4** states that the total charge of the universe is constant.
- This aligns perfectly with the law of conservation of charge. Since charge cannot be created or destroyed, the total charge in the universe remains constant.

6. **Conclusion**:
- Based on the analysis, **Option 4** is the correct answer. The total charge of the universe is indeed constant.

### Final Answer:
**Option 4: The total charge of the universe is constant.**

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