Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

A current-carrying wire is placed parallel to the lines of force in a magnetic field, then:

Options:

The wire will experience a force in the direction of the magnetic field

The wire will experience a force in the opposite direction of the magnetic field

The wire will experience a force perpendicular to the magnetic field

Wire does not experience a force

Correct Answer:

Wire does not experience a force

Explanation:

Force in a current-carrying conductor is F  = i dl B Sinθ                                                           

                                                            = i dl B Sin 0 (since they are parellel, angle is 0)

                                                            = 0

So the force experienced is zero.