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Question

What happens when a current carrying conducter is placed in a magnetic field?

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Solution

Hendrik Lorentz found that a charge moving in a magnetic field, in a direction other than the direction of the magnetic field, experiences a force. It is called Lorentz Force. Since current is due to the motion of charge, therefore a conductor carrying moving charges (or current) places in a magnetic field, in direction other than the direction of magnetic field, will also experience a force.

The direction of force on a current carrying conductor placed in a magnetic field is obtained by Fleming's left hand rule.

If the conductor is free to move, it will start moving in the direction of the force.

Thus, if a current carrying conductor is placed in a magnetic field, it experiences the Lorentz force (unless the angle between the flow of current and magnetc lines is 0°).


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