The figure given below shows a current-carrying conductor placed between two magnets. Which of the given arrows correctly indicates the direction of the force acting on the conductor?
Correct answer: A. R
- A. R
- B. P
- C. Q
- D. S
Explanation
Using Fleming's left-hand rule, when the index finger is pointed in the direction of the magnetic field (North to South), while the second finger is pointed into the plane (cross indicates current into the plane while dot indicates out of the plane). The direction in which the thumb points will be the direction of force. Which in this case is the same as R.
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About Electromagnetism
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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