However if we apply an alternating current or ac supply the capacitor will alternately charge and discharge at a rate determined by the frequency of the supply. Capacitive reactance as the frequency of the circuit increases. Motor Capacitor Alternating Current Direct Current Ac Motor Ac Capacitance And Capacitive Reactance In Ac Circuit Phase Shift In A Rc Element Iamtechnical Com A equal to the highest applied voltage. Alternating current capacitor . Alternating current in a simple capacitive circuit is equal to the voltage in volts divided by the capacitive reactance in ohms just as either alternating or direct current in a simple resistive circuit is equal to the voltage in volts divided by the resistance in ohms. The solid line represents the voltage across the capacitor and the dotted line represents the current. C at least 50 percent greater than highe...
