Question

On which factors does the magnetic field due to a current-carrying conductor depend? Write and explain the name of the law used to find the direction of the magnetic field.

Hint:

The {Right-Hand Thumb Rule} helps determine the magnetic field direction around a current-carrying conductor.

Answer 1

The magnetic field produced by a current-carrying conductor depends on:
1. Current (I): A higher current produces a stronger magnetic field.
2. Distance (r): The magnetic field decreases as the distance from the conductor increases.
3. Medium: The nature of the surrounding medium affects the magnetic field strength.
The law used to determine the direction of the magnetic field is Right-Hand Thumb Rule:
- If we hold a current-carrying conductor with the right hand, such that the thumb points in the direction of current, then the fingers curl in the direction of the magnetic field.