Effects of temperature towards conductivity

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SUMMARY

The discussion focuses on investigating the effect of temperature on the conductivity of a charcoal rod. Key points include the necessity of measuring the temperature, current, and voltage simultaneously during the experiment. It is established that maintaining a constant temperature is not required; instead, varying these parameters and plotting the results will yield valuable insights into the relationship between temperature and conductivity. The experiment emphasizes the importance of data collection for accurate analysis.

PREREQUISITES
  • Understanding of electrical conductivity principles
  • Familiarity with Ohm's Law and its application
  • Knowledge of temperature measurement techniques
  • Experience with data plotting and analysis
NEXT STEPS
  • Research methods for heating materials uniformly, such as using a temperature-controlled water bath
  • Learn about measuring electrical parameters using a multimeter
  • Explore data visualization techniques for plotting graphs in software like Excel or Python's Matplotlib
  • Investigate the relationship between resistance and temperature in materials, focusing on the charcoal rod
USEFUL FOR

Physics students, experimental researchers, and educators interested in the principles of conductivity and temperature effects in materials.

wisdom32
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Ok, i am given this task by my physics group leader and is required to do an experiment based on the following research question:
To investigate the effect of temperature to the conductivity of a charcoal rod.

i. How do i heat a charcoal rod to a desired temperature and make it remain constant at that temperature ?

ii. When i am conducting the experiment as in letting electric current go through the rod, wouldn't it heat up due to its resistance ? Again, how do i keep the temperature constant ?

Thanks.
 
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You don't need to keep the rod at a constant temperature. Can you measure 1)the temperature of the rod, 2)the current flowing through the rod and 3) the voltage across the rod, simultaneously ? If so, you only need to find these values for different currents/temperatures and plot a graph.
 

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