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Name: tim
Status: student
Age: 15
Location: N/A
Country: N/A
Date: 1999 

does temperature effect electrical current?

Yes, temperature does effect the conductivity of materials. For conductors, an increase in temperature reduces the current carrying capacity. For insulators, it has just the opposite effect; an increase in temperature increases the current carrying capacity.

---Nathan A. Unterman---

Short answer - Yes...

Long answer - ...but I don't know to what extent.

At least now you'll know that you're not chasing a wild goose when you do your research!

Good luck,

Spencer Pasero

Temperature can affect the conductivity of materials. This will affect the current that flows through it if the voltage is set.

The conductivities of most metals decrease as the temperature increases. Semiconductors behave exactly the opposite way; their condictivities increase as the temperature increases. The reasons for these behaviors is faitly complicated; ask again if you want a more thorough explanation.

Richard E. Barrans Jr., Ph. D.

Yes it does. If you heat up a wire carrying electricity, you change its resistively, and thus the current through for a fixed applied voltage.


Dr. Ali Khounsary
Advanced Photon Source
Argonne National Laboratory

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