How does the magnetic field produced by a current-carrying wire change with distance?

Subject: General Science

Topic: Magnetic Effects of Electric Current

Options:

1. Option A: It increases with distance
2. Option B: It decreases with distance
3. Option C: It remains constant
4. Option D: It becomes zero

Correct Answer:

Option B: It decreases with distance

Explanation:

The magnetic field produced by a given current in a conductor decreases as the distance from it increases. This is why the concentric circles become larger as we move away from the wire.