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Electronics Dictionary - K

 kilo Metric prefix for 1000. (103) kilovolt-ampere 1000 volts at 1 ampere. kilowatt-hour 1000 watts for 1 hour. kilowatt-hour meter A meter used by electric utility companies to measure the amount of electric power used by a customer. kinetic energy Energy associated with motion. Kirchhoff"s current law The sum of the currents flowing into a point in a circuit is equal to the sum of the currents flowing out of that same point. Kirchhoff"s voltage law The algebraic sum of the voltage drops in a closed path circuit is equal to the algebraic sum of the source voltages applied. knee voltage The voltage at which a curve joins two relatively straight portions of a characteristic curve. For a PN junction diode, the point in the forward operating region of the characteristic curve where conduction starts to increase rapidly. For a zener diode, the term is often used in reference to the zener voltage rating.
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