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potentiometer

 - 6 dictionary results

po⋅ten⋅ti⋅om⋅e⋅ter

[puh-ten-shee-om-i-ter]
–noun Electricity.
1. a device for measuring electromotive force or potential difference by comparison with a known voltage.
2. voltage divider.

Origin:
1880–85; potenti(al) + -o- + -meter


po⋅ten⋅ti⋅o⋅met⋅ric [puh-ten-shee-uh-me-trik] , adjective

voltage divider

–noun Electricity.
a resistor or series of resistors connected to a voltage source and used to provide voltages that are fractions of that of the source.


Origin:
1920–25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To potentiometer
po·ten·ti·om·e·ter   (pə-těn'shē-ŏm'ĭ-tər)   
n.  
  1. An instrument for measuring an unknown voltage by comparison to a standard voltage.

  2. A three-terminal resistor with an adjustable center connection, widely used for volume control in radio and television receivers. Also called pot1.


[potenti(al) + -meter.]
po·ten'ti·o·met'ric (-ə-mět'rĭk) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: po·ten·ti·om·e·ter
Pronunciation: p&-"ten-chE-'äm-&t-&r
Function: noun
: an instrument formeasuring electromotive forces —po·ten·tio·met·ric /-ch(E-)&-'me-trik/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
potentiometer   (pə-těn'shē-ŏm'ĭ-tər)  Pronunciation Key 
  1. A mechanical variable resistor. See more at resistor.

  2. An instrument for measuring an unknown voltage by comparison with a known voltage, such as that of a generator.


voltage divider  
A set of two or more resistors connected in series between an applied voltage, so that the voltage at points between the resistors is a fixed fraction of the applied voltage. Voltage dividers are common in the power supplies of devices such as amplifiers, in which different subcomponents require different voltage levels for their own power supplies.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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