d) Temperature

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Last updated 3:57 PM on 2/20/26
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5 Terms

1
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  • define negative temperature coefficient


  • the property of a material having a lower resistance at higher temperatures


2
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  • state why some materials have a negative temperature coefficient


  • temperature increases → number density of electrons increases


3
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  • state the name of an electrical component with a negative temperature coefficient


  • thermistor


4
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  • describe why a thermistor is a good detector of temperature changes


  • small change in temperature → larger change in resistance


<ul><li><p>small change in temperature → larger change in resistance</p></li></ul><p></p>
5
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  • state the I-V characteristics of a thermistor


  • I → V

    • non-ohmic conductor

  • resistance → decreasing


<ul><li><p>I → V</p><ul><li><p>non-ohmic conductor</p></li></ul></li><li><p>resistance → decreasing</p></li></ul><p></p>