How does resistance change with temperature for Ohmic conductors and filaments?

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SUMMARY

Resistance in Ohmic conductors is directly proportional to temperature, resulting in a linear relationship that passes through the origin. In contrast, filament materials, such as Tungsten, exhibit a more complex behavior where resistance increases with temperature up to a certain point before decreasing at higher temperatures. This behavior is due to the rising resistivity of metals, particularly at elevated temperatures. Understanding these principles is essential for Grade 11 physics students preparing for exams.

PREREQUISITES
  • Understanding of Ohm's Law
  • Basic knowledge of electrical resistivity and conductivity
  • Familiarity with temperature scales (Kelvin)
  • Concept of linear graphs in physics
NEXT STEPS
  • Study the relationship between temperature and resistivity in metals
  • Explore the properties of Tungsten as a filament material
  • Investigate the graphical representation of resistance vs. temperature
  • Learn about non-Ohmic conductors and their characteristics
USEFUL FOR

Grade 11 physics students, educators teaching electrical properties, and anyone interested in the behavior of conductors and filaments under varying temperatures.

GingerPrince
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Homework Statement



How does does resistance vary with temperature for an Ohmic conductor and filament?

Homework Equations





The Attempt at a Solution


So what I know is that resistance(Ohms) against temperature(K) for an Ohmic conductor is directly proportional with the graph passing through the Origin and being a straight line.
And for a filament, the resistance is directly proprtional for a range of temperatures and then decreases with the graph having a decreasing gradient.
Note this is Grade 11 level. I HAVE AN EXAM :(
 
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