Which one of the following statements concerning the electric field inside a conductor is true if electrons are moving from right to left in a conducting wire?

Options

A. The electric field must be zero in this case
B. The electric field is directed perpendicular to the direction the electrons are moving
C. The electric field is directed toward the left
D. The electric field is directed toward the right

Answer

To solve the question about the electric field inside a conductor when electrons are moving from right to left, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Electron Flow**:
- In a conducting wire, electrons are negatively charged particles. When they move from right to left, it indicates the direction of the flow of electric current.

2. **Direction of Electric Current**:
- By convention, electric current is considered to flow in the opposite direction to the flow of electrons. Therefore, if electrons are moving from right to left, the conventional current flows from left to right.

3. **Electric Field Direction**:
- The electric field (E) inside a conductor is directed from the positive terminal to the negative terminal of the battery. Since the conventional current flows from left to right, the electric field must also point in the same direction, which is from left to right.

4. **Analyzing the Options**:
- Now, let's evaluate the given options:
- **Option 1**: The electric field must be zero. (Incorrect)
- **Option 2**: The electric field is directed perpendicular to the direction of electrons. (Incorrect)
- **Option 3**: The electric field is directed towards the left. (Incorrect)
- **Option 4**: The electric field is directed towards the right. (Correct)

5. **Conclusion**:
- The correct statement concerning the electric field inside the conductor, when electrons are moving from right to left, is that the electric field is directed towards the right.

### Final Answer:
The electric field inside the conductor is directed towards the right.

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