What are the factors that influence the direction of motion of the conductor
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Explanation:
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a) A current carrying conductor produces a magnetic field around it. When it interacts with magnetic field it experiences a force. Direction of the force depends upon direction of current and that of magnetic field.
Fleming's left hand rule: Stretch the thumb, forefinger and middle finger of left hand such that they are mutually perpendicular to each other. If the first finger points in the direction of field and the middle finger in the direction of current, then the thumb gives the direction of motion or the force on the conductor.
(b) The deflection will increase, as the magnetic field produced around the conductor is proportional to the current flowing through the wire.
OR
a) An electric fuse is an important application of the heating effect of electric current which prevents short circuits. The wires of an electric fuse are made of special materials that melt quickly and break when large electric currents are passed through them. It is a small, thin wire of a material whose melting point is very low. There is a maximum limit on the current which can safely flow through a circuit. If the current exceeds the safe limit, then the wires may become overheated and can cause fire.
b) Due to electromagnetic induction, there would be change in the magnetic field around the coil A and this will be experienced at coil B. So, a current will be induced in coil B.
Fleming's left hand rule: Stretch the thumb, forefinger and middle finger of left hand such that they are mutually perpendicular to each other. If the first finger points in the direction of field and the middle finger in the direction of current, then the thumb gives the direction of motion or the force on the conductor.
(b) The deflection will increase, as the magnetic field produced around the conductor is proportional to the current flowing through the wire.
OR
a) An electric fuse is an important application of the heating effect of electric current which prevents short circuits. The wires of an electric fuse are made of special materials that melt quickly and break when large electric currents are passed through them. It is a small, thin wire of a material whose melting point is very low. There is a maximum limit on the current which can safely flow through a circuit. If the current exceeds the safe limit, then the wires may become overheated and can cause fire.
b) Due to electromagnetic induction, there would be change in the magnetic field around the coil A and this will be experienced at coil B. So, a current will be induced in coil B.
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