Hi. I want to calculate the energy requirements and temperature increase of 3 inches (75mm) of 22AWG Nichrome wire. Referring here . 3" of 22AWG Nichrome, requires approx 0.5 amps to increase its temperature by 20C (68F). The resistance through the wire is ~0.25R, and increase in R due to heating up…

Heating Nichrome wire - power, current, voltage requirements?

GoForSmoke March 25, 2012, 11:54pm 5

Doesn't the resistance of most wire increase as it heats up?

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