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# the force acting on a current carrying conductor kept in a magnetic field is utilized in the working of a

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Why does a current carrying conductor kept in a magnetic field experience force? On what factors does the direction of this force depend? Name and state the rule used for determination of direction of this force. [5 MARKS]

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1. Ampere suggested that if a current carrying conductor produces a magnetic field and exerts a force on a magnet, then a magnet should also exerts a force on a current carrying conductor.

Eg :- If an aluminum rod is suspended horizontally by a wire between the poles of a horse shoe magnet and current is passed through the wire, then the aluminum rod is displaced. If the direction of current is reversed, the direction of displacement is also reversed. The force exerted is maximum if the conductor is perpendicular to the magnetic field.

2. Fleming’s Left Hand Rule :-

The direction of force (motion) of a current carrying conductor in a magnetic field is given by Fleming’s Left Hand Rule.

It states that " If we hold the thumb, fore finger and middle finger of the left hand in mutually perpendicular to each other such that the fore finger points in the direction of magnetic field, the middle finger points in the direction of current, then the thumb shows the direction of force (motion) of the conductor"

Force on a Current Carrying Conductor

Standard IX Physics Suggest Corrections 8

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## Why does a current carrying conductor kept in a magnetic field experience force ? On what factors does the direction of this force depend ? Name and state the rule used for the determination of direction of this force.

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Question

## Why does a current carrying conductor kept in a magnetic field experience force ? On what factors does the direction of this force depend ? Name and state the rule used for the determination of direction of this force.

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Updated on : 2022-09-05

When a current-carrying conductor is placed in a magnetic field the wire experiences a force due to the interaction between the field and the magnetic field produced by the moving charges in the wire.

Solution Verified by Toppr

The current carrying conductor generates it own magnetic field around it. This  interracts with the external magnetic field. When two magnetic fields interact there will be attraction and repulsion between them based on the direction of the external magnetic field and the direction of the current in the conductor. That is why the conductor experiences a force.

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Mohammed 6 day ago

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