A power control apparatus includes an input terminal and an output terminal for an AC signal; a DC removing capacitor connected between the input terminal and the output terminal; and a variable capacitor that is connected between the input terminal and the output terminal and whose capacitance can be changed by a control signal. One of a current and a voltage of the AC signal is controlled by changing the capacitance of the variable capacitor using the control signal, and dielectrics that form a serially connected row of capacitors composed of the DC removing capacitor and the variable capacitor are configured so as to be integrally laminated, and the control signal is applied across a dielectric that forms the variable capacitor and the AC signal is applied across the dielectrics that form the row of capacitors.