Force on a current carrying conductor in a uniform magnetic field. Essay type question
Answers
When a conductor (say wire) is placed in a uniform magnetic field, it experiences a force (magnetic).
There are a large number of electrons in a conductor (say a copper wire), when we place the conductor (carrying current) in a magnetic field, the electrons experience a drift.
Current on the conductor means drifting of such a free electron in any fixed direction due to the motion of such a free electron each electron experience magnetic force and hence, conductor itself experience magnetic force.
The direction of the experienced force is determined by Fleming's left hand rule:
If the direction of the field and that of current are mutually perpendicular to each other, then the force acting on the conductor will be perpendicular to both and that can be determined using the Fleming's left-hand rule.
Mathematically,
F=(nqAvd)lBsinθ
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