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Understanding Resistance: Properties, Types, and Measurement, Slides of Electrical Circuit Analysis

An overview of resistance, its properties, types of resistors, and methods for measurement. Topics include the unit of resistance (ohm), malleability and ductility, temperature effect on resistance, superconductors, fixed and variable resistors, resistor color code, conductance, ohmmeters, thermistors, and varistors.

Typology: Slides

2012/2013

Uploaded on 03/17/2013

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RESISTANCE
Ohm – Unit for resistance
Circular Wires
Circular mils
1000 mils = 1 inch
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Download Understanding Resistance: Properties, Types, and Measurement and more Slides Electrical Circuit Analysis in PDF only on Docsity!

• Ohm – Unit for resistance

• Circular Wires

• Circular mils

• 1000 mils = 1 inch

  • Malleability- property of a metal to be

deformed by compression without cracking or

rupturing.

  • Ductility- In a tensile test, ductile metals show

considerable elongation eventually failing by

necking, with consequent rapid increase in

local stresses

Types of resistors

 Fixed

 Variable

 Potentiometer

  • Three legs
  • Changes Voltage

 Rheostat

  • Two legs
  • Changes Current

 Resistor Color Code  0 – Black  1 - Brown  2 – Red  3 – Orange  4 - Yellow  5 – Green  6 – Blue  7 – Violet  8 – Gray  9 – White