what are the best five examples of dipole
Answers
Electric dipole, pair of equal and opposite
electric charges the centres of which are not coincident. An atom in which the centre of the negative cloud of electrons has been shifted slightly away from the nucleus by an external
electric field constitutes an induced electric dipole. When the external field is removed, the atom loses its dipolarity. A
water molecule (H 2 O), in which two hydrogen atoms stick out on one side and form together with the oxygen atom as vertex a 105° angle, constitutes a permanent electric dipole. The oxygen side of the molecule is always somewhat negative and the hydrogen side somewhat positive. An electric dipole may be large, too, such as a long straight wire used as a radio transmitting antenna on which electrons are impelled back and forth, making one end negative and the other positive with reversal of polarity every half cycle.