[ ri-zis-ter ]
/ rɪˈzɪs tər /
a device designed to introduce resistance into an electric circuit.
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WORDS THAT MAY BE CONFUSED WITH resistorresister, resistor
Words nearby resistor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for resistor
As an assertor, as a resistor of Arminian denials, we may embrace him and go all lengths with him.The Gospel of St. John|Frederick Denison Maurice
British Dictionary definitions for resistor
/ (rɪˈzɪstə) /
an electrical component designed to introduce a known value of resistance into a circuit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for resistor
[ rĭ-zĭs′tər ]
A device used in electrical circuits to maintain a constant relation between current flow and voltage. Resistors are used to step up or lower the voltage at different points in a circuit and to transform a current signal into a voltage signal or vice versa, among other uses. The electrical behavior of a resistor obeys Ohm's law for a constant resistance; however, some resistors are sensitive to heat, light, or other variables.♦ Variable resistors, or rheostats, have a resistance that may be varied across a certain range, usually by means of a mechanical device that alters the position of one terminal of the resistor along a strip of resistant material. The length of the intervening material determines the resistance. Mechanical variable resistors are also called potentiometers, and are used in the volume knobs of audio equipment and in many other devices. Compare capacitor. See more at Ohm's law.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.