In the hydraulic analogy, these devices correspond to accumulators.
A common material used in one type of these devices consists of TEMA-BF4 immersed in a solvent like acetonitrile or propylene carbonate. A VCO uses a so-called "variable" type of this device to control the output frequency. Many of these devices are connected in a stack in the structure of a Marx generator. Replacing the normal connection between the inverting terminal to the output in an inverting op-amp set-up with one of these devices creates an integrator. Op-amps which include one of these devices in their internal circuitry are termed internally compensated. These devices can be used to smooth out the ripple present in the output of a rectifier. In the hydraulic analogy, these devices correspond to accumulators. For 10 points, name these devices which separate the input and ground in a simple low-pass filter, since their reactance is inversely proportional to frequency.
A common material used in one type of these devices consists of TEMA-BF4 immersed in a solvent like acetonitrile or propylene carbonate.
capacitor [accept supercapacitors or electric double layer capacitors or EDLCs]