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H C G B P e _ d k Z g ^ t j F H R ?Let r be the statement ~q then (p & ~q) v p ≡ (p & r) v p and absorption then implies that this is logically equivalent to p Harley Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical SciencesCapacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potentialThere are two closely related notions of capacitance self capacitance and mutual capacitance 237–238 Any object that can be electrically charged exhibits self capacitanceIn this case the electric potential difference is measured between the object and ground Q Wikipedia q "Vp "¯^ Ìq