A dipole is a pair of equal and opposite charges or magnetic poles separated by a distance. In the context of electricity, a dipole can refer to a molecule that has a positive end and a negative end, creating a dipole moment. This property is important in understanding how molecules interact with each other, especially in polar substances like water. In magnetism, a dipole refers to a magnet with a north and south pole. When placed in a magnetic field, dipoles tend to align with the field lines. Dipoles are fundamental in various scientific fields, including chemistry, physics, and electrical engineering, influencing phenomena such as electromagnetism and molecular interactions.