FIELD which passes through a given area.Magnetic flux is the product of the average magnetic field times the perpendicular area that it penetrates.The SI unit of magnetic flux is Weber (WB). Conductance explains the ease with which ELECTRIC CURRENT flows through a substance.Magnetic flux density is defined as the amount of magnetic flux in an area taken perpendicular to the magnetic flux's direction.Capacitance is the ability of a body to HOLD an electrical charge.