"A"
"B"
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
Previous set of "N" Terms and definitions
NODE. A connection point in a circuit or on a bus. The fixed minimum points of voltage or current on a standing wave or antenna.
NOISE. In reference to sound, an unwanted disturbance caused by spurious waves that originate from
man-made or natural sources. In radar, erratic or random deflection or intensity of the indicator
sweep that tends to mask small echo signals.
NOISE FIGURE. The ratio of output noise to input noise in a receiver.
NOISE LIMITER. Circuit that clips the peaks of the noise spikes in a receiver.
NOISE SUPPRESSOR. See Noise Limiter.
NO-LOAD CONDITION. The condition that exists when an electrical source or secondary of a
transformer is operated without an electrical load.
NONDEGENERATIVE PARAMETRIC AMPLIFIER. A parametric amplifier that uses a pump signal
frequency that is higher than twice the frequency of the input signal.
NONDIRECTIONAL. See Omidirectional.
| NON-INVERTING AMPLIFIER. An amplifier that does not invert the incoming signal at the output. The circuit example shows a Non-inverting Op Amp |
 Non-Inverting Op-Amp |
NONLINEAR DEVICE. A device in which the output does not rise and fall in direct proportion to the input. [Nonlinear Resistors].
NONLINEAR IMPEDANCE. An impedance in which the resulting current through the device is not proportional to the applied voltage.
NONRESONANT LINE. A transmission fine that has no standing waves of current or voltage.
NONTRIP-FREE CIRCUIT BREAKER. A circuit breaker that can be held in the ON position during an over-current condition. Circuit Breakers
NOR. A logic function of A and B that is true if both A and B are false.
NOR GATE. An OR gate that is followed by an inverter to form a binary circuit in which the output is a logic 0 if ANY of the inputs is a logic 1 and the output is a logic 1 only if all the inputs are a logic 0.
NOR Gate IC Pin-Out
NORMAL. The imaginary line perpendicular to the point at which the incident wave strikes the reflecting surface. Also called the perpendicular.
NOT CIRCUIT. A binary circuit with a single output that is always the opposite of the input. Also called an Inverter Circuit.
| NPN. An NPN transistor is formed by introducing a thin region of P-type material between two regions of N-type material. [Transistor Terms] / [Transistor Manufacturers] |  NPN |
| NULL. A balanced condition of a circuit that represents zero output, as in Off-Set Null of an Op Amp. The minimum output amplitude of a circuit. On a polar-coordinate graph, the area that represents minimum or 0 radiation. |  Off-Set Null |
NUMBER. A mathematical entity that may indicate quantity or amount of units. An abstract mathematical symbol for expressing a quantity. Also Hex.
NUMBER REPRESENTATION. The representation of numbers by agreed sets of symbols according to agreed rules. Also ASCII.
NUMBER SYSTEM. A number representation system. Any system for the representation of numbers. Also Base Number Conversion.
NUMERAL. A discrete representation of a number. For example, twelve, 12, XII, are three different numerals that represent the same number. A numeric word that represents a number.
NYQUIST. A theorem that determines the minimum sampling rate of a signal. See Nyquist Sampling Rate
