Question

Current flows in a conductor from east to west. The direction of the magnetic field at a point below the conductor is towards:

• A. North
• B. South
• C. East
• D. West

Hint:

The Right-Hand Thumb Rule helps determine the direction of the magnetic field: - Point the thumb in the direction of current flow. - The curled fingers indicate the direction of the magnetic field.

Answer 1

The Correct Option is B

Step 1: Understanding the Right-Hand Thumb Rule
The direction of the magnetic field around a current-carrying conductor can be determined using the Right-Hand Thumb Rule. According to this rule: - If the thumb of the right hand points in the direction of current flow (East to West in this case), then the curled fingers represent the direction of the magnetic field.
Step 2: Applying the Rule Below the Conductor
- When current flows from east to west, using the Right-Hand Thumb Rule, the curled fingers point into the plane below the conductor.
- This means the magnetic field direction at a point below the conductor is towards South.
Step 3: Conclusion
Thus, the correct answer is South.