(a) Briefly explain/justify why voltage and not current is the natural state variable for an electrical capacitor; and current and not voltage is the natural state variable for an electrical inductor.
(b) List several advantages of using as state variables, the across variables of independent A-type energy storage elements and through variables of independent T-type energy storage elements, in the development of a state-space model for an engineering system.
(c) List three things to which the order of an electromechanical dynamic system is equal.