Question:
With the help of a labeled diagram, show the pattern of magnetic field lines around a current-carrying straight conductor. Explain how we can use the right-hand thumb rule to find the direction of magnetic field due to current.
With the help of a labeled diagram, show the pattern of magnetic field lines around a current-carrying straight conductor. Explain how we can use the right-hand thumb rule to find the direction of magnetic field due to current.
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The magnetic field around a straight conductor forms concentric circles. Use the right-hand thumb rule to trace the field direction.
Updated On: Jul 17, 2025
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Solution and Explanation
Diagram: Magnetic Field Lines Around a Straight Conductor 
Right-Hand Thumb Rule:
If you hold the current-carrying conductor in your right hand such that the thumb points in the direction of the current, then the curled fingers show the direction of the magnetic field around the conductor.
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