Physics
Grade-10
Easy
Question
The direction of magnetic lines of force close to a straight conductor carrying current will be:
- Along the length of the conductor
- Circular in a plane perpendicular to the conductor
- Helical
- Radially outward
Hint:
The direction of magnetic lines of force close to a straight conductor carrying current will be circular in a plane perpendicular to the conductor.
The correct answer is: Circular in a plane perpendicular to the conductor
- When a current-carrying conductor is exposed to a magnetic field, a force is generated.
- The force acting on the conductor will be perpendicular to both if the direction of the field and the direction of the current are mutually perpendicular to one another.
- This may be proven using Fleming's left-hand rule.
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