A one pole filter has one capacitor and one resistor. A two pole filter has two RC circuits and so on. Either of two numbers that locate a point in a plane by its distance from a fixed point and the angle this line makes with a fixed line. A charge that exists in a body that has fewer electrons than protons. A feedback signal that is in phase with an amplifier input signal.
Positive feedback is necessary for oscillation to occur.
A system whereby the positive terminal of the source is connected to the system's conducting chassis. Voltage difference between two points which will cause current to flow in a closed circuit. A variable resistor with three terminals. Mechanical turning of a shaft can be used to produce variable resistance and potential. Measured in units of watts.