​A current-carrying straight conductor is placed in a magnetic field. The conductor experiences the maximum force when the angle between the direction of the current in it and the direction of the magnetic field is:

Correct option is D

The correct answer is (D)   ​90°

• The force acting on a conductor carrying current in a magnetic field is calculated using the formula:
• F = BILsinθ, where:
• B is the strength of the magnetic field.
• I is the current passing through the conductor.
• L is the length of the conductor in the magnetic field.
• θ is the angle between the direction of the current and the magnetic field.
• The force is greatest when the conductor is perpendicular to the magnetic field (θ = 90°). In this case, sinθ = 1, giving the maximum force.
• In real-life situations, it is not always possible to keep the conductor exactly perpendicular to the magnetic field.
• When the angle θ is 0° or 180°, the force is zero because sinθ is zero at these angles.

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