Physics
In the given diagram, X represents a conductor carrying current into the plane of the paper and kept in a magnetic field. N & S represent the poles of a magnet and concentric circles of the magnetic field produced by the conductor.
(a) State the direction of the force experienced by the conductor.
(b) Explain the cause of the above-said force.
(c) Name the law used to determine the direction of the force in the conductor.
Electro-Magnetism
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Answer
(a) Downwards
(b) The external magnetic field runs from the north pole (left) to the south pole (right). Around the wire, concentric circles of magnetic field lines indicate the current is going into the page. According to Fleming's Left-Hand Rule, the force acts downward, toward the bottom of the page.
- Thumb indicating the force (F) direction.
- Index finger with the magnetic field (B),
- Middle finger with the current (I),
(c) Fleming’s left-hand rule.
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