Even a new, minimum efficiency air conditioner or furnace can be a significant jump in efficiency. The old furnace in your basement may only be originally rated at 60% to 70% AFUE. In order to comply with national regulations, furnaces manufactured today have to be rated at a minimum of 80% AFUE.
dipole - a pair of equal and opposite electric charges or magnetic poles separated by a small distance. couple - (physics) something joined by two equal and opposite forces that act along parallel lines. electric dipole, electric doublet - a dipole with equal and opposite electric charges.
Electric dipole moment - Potential and field of an electric dipole. 1  An ideal dipole consists of two opposite charges with infinitesimal separation. 2  Two closely spaced opposite charges have a potential of the form... 3  with charge separation, d, defined as.