Which of the following statements are true for magnetic force acting on a curren

Question

Which of the following statements are true for magnetic force acting on a current-carrying wire in a uniform magnetic field? The direction of the magnetic force acting on a current-carrying wire in a uniform magnetic field is perpendicular to the direction of the current. The magnetic force on the current-carrying wire is strongest when the current is parallel to the magnetic field lines. The magnetic force on the current-carrying wire is strongest when the current is perpendicular to the magnetic field lines. The direction of the magnetic force acting on a current- carrying wire in a uniform magnetic field is perpendicular to the direction of the field.

Explanation / Answer

As F = I(L x B) = ILBsin(theta)

So the following statements are true:

a) The direction of the magnetic force acting on a current-carrying wire in a uniform magnetic field is perpendicular to the direction of the current.

c) The magnetic force on the current-carrying wire is strongest when the current is perpendicular to the magnetic field lines.

d) The direction of the magnetic force acting on a current-carrying wire in a uniform magnetic field is perpendicular to the direction of the field.

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