1) Electromagnet: A temporary magnet produced by passing an
electric current through a coil of wire, used in various applications like
electric switches, lifting heavy objects, etc.
2) Solenoid: A long coil of wire often wound around a cylindrical core, which
produces a strong magnetic field when an electric current flows through it.
3) Magnetic field: The region around a magnet where
its influence can be felt, exerting a force on other magnets or magnetic
materials.
4) Magnetic force: The attractive or repulsive force
between two magnets or a magnet and a magnetic material.
5) Right-hand thumb rule: A rule used to determine the
direction of the magnetic field around a current-carrying conductor. The thumb
points in the direction of the current, and the fingers curl in the direction
of the magnetic field.
6) Magnetic field lines: Imaginary lines that depict the
direction and strength of the magnetic field around a magnet or a
current-carrying conductor.
7) Magnetic compass: A device that uses a magnetic
needle to indicate the direction of the Earth's magnetic field, often used for
navigation.
8) Oersted's experiment: The experiment conducted by Hans
Christian Oersted, demonstrating that an electric current flowing through a
conductor produces a magnetic field around it.
9) Fleming's left-hand rule: A rule used to determine the
direction of motion of a conductor in a magnetic field when an electric current
passes through it.
When you
keep the thumb, index finger and middle finger of the left hand at right angles
(90°) to each other. If the thumb shows the applied force or motion, the first
(index or forefinger) shows the lines of flux (field), then the second (middle)
finger shows the direction of current
10)
Fuse: A safety
device which protects electric appliances from accidents is called fuse.
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