Dipole (noun)

In physics, a dipole refers to a pair of equal and opposite electric charges or magnetic poles that are separated by some distance. A dipole moment is a measure of the separation of these charges or poles and the magnitude of the charge or pole. Dipoles also occur in other areas of physics such as in the study of molecules and in antennas.

Origin:

The word dipole comes from the greek word "di" meaning "two" and "pōlon" meaning "pole", thus a dipole refers to two poles or a pair of poles that are opposite to each other. in physics, a dipole refers to a pair of equal and opposite electric charges or magnetic poles that are separated by some distance.

Examples:

1. A bar magnet is an example of a magnetic dipole, with the north pole and south pole being the opposite poles.
2. A water molecule is an example of an electric dipole, with the oxygen atom being slightly negatively charged and the hydrogen atoms being slightly positively charged.
3. A dipole antenna is a type of antenna that is made up of two metal rods of different lengths, which are used for transmitting or receiving radio waves.
4. An electric dipole can be created by separating two charges, one positive and one negative.
5. The dipole moment of a molecule can be calculated by measuring the separation and charge of the atoms that make up the molecule.