NEET Physics Magnetic Force on Current MCQ Question
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?
Perpendicular to both current direction and magnetic field.
Parallel to the current direction.
Parallel to the magnetic field.
Opposite to the direction of current.
Correct Answer
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.
Found an issue with this question?
Related Questions
More from Magnetic Force on Current
More from
What is used to convert a galvanometer into an ammeter?
What does Ampere's Law state about the relationship between the magnetic field and the total current through a closed loop?
What did the postulation of electric charges in the atom help to explain, as acknowledged by the Nobel Prize awarded in 1902?