The diagram shows a wire, carrying an electronic current I, placed between the poles of a magnet. In which direction does the force on the wire act?
Correct answer: A. Into the paper
- A. Into the paper
- B. Towards the N pole of the magnet
- C. Out of the paper
- D. Towards the S pole of the magnet
Explanation
F=I(LxB) The direction of L is in the direction of the current. The direction of the magnetic force F is the right angle to the plane containing L and B. It is given by right-hand rule of the cross product (into the paper).
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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