Why does a current-carrying conductor in a magnetic field experience force? On what factors does the direction of this force depend on? Name and state the rule used for determination of the direction of this force.
Why does a current-carrying conductor in a magnetic field experience force? On what factors does the direction of this force depend on? Name and state the rule used for determination of the direction of this force.
Force on a conductor carrying current in a magnetic field:-
Ampere suggested that if a current carrying conductor produces a magnetic field and exerts a force on a magnet, then a magnet should also exert a force on a current carrying conductor.
Eg: - If an aluminum rod is suspended horizontally by a wire between the poles of a horseshoe 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.
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, forefinger and middle finger of the left hand in mutually perpendicular to each other such that the forefinger 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 conductor carrying current in a magnetic field:-
Ampere suggested that if a current carrying conductor produces a magnetic field and exerts a force on a magnet, then a magnet should also exert a force on a current carrying conductor.
Eg: - If an aluminum rod is suspended horizontally by a wire between the poles of a horseshoe 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.
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, forefinger and middle finger of the left hand in mutually perpendicular to each other such that the forefinger 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".
