Physics-Magnetic Force on Current
NEET Physics Magnetic Force on Current MCQ Question
Type: MCQ-diagram based-Easy-Class 12
Imagine a straight rod of length l carrying a current I placed in an external magnetic field B. If the force acting on the rod is determined by the equation F = I l × B, which of the following correctly describes the direction of the force?
A
Perpendicular to both current direction and magnetic field.
B
Parallel to the current direction.
C
Parallel to the magnetic field.
D
Opposite to the direction of current.
Correct Answer
Option A
Detailed Explanation
The force on a current-carrying conductor in a magnetic field is given by the vector cross product F = I l × B, which means it is perpendicular to both the current direction and the magnetic field.
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