Question

There is a thin conducting wire carrying current. The value of magnetic field induction at any point on the conductor would be:

• A. Zero
• B. Constant
• C. Positive
• D. Negative

Hint:

The magnetic field around a current-carrying wire is constant at a given distance and follows a circular pattern.

Answer 1

The Correct Option is B

For a long straight conducting wire carrying a current, the magnetic field around the wire is constant at every point at a fixed distance from the wire. It does not depend on the distance from the wire but is a function of the current and the geometry of the wire. The field lines are circular and centered on the wire.