Physics
Grade-10
Easy

Question

The direction of magnetic lines of force close to a straight conductor carrying current will be:

  1. Along the length of the conductor
  2. Circular in a plane perpendicular to the conductor
  3. Helical
  4. Radially outward

hintHint:

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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