Heating wire
Last Post 02 Apr 2013 02:37 PM by Niel. 1 Replies.
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G.M. Fisher
New Member
New Member

28 Mar 2013 04:46 PM
    Questions: Can low 7.4mW heat 40 gauge nichrome wire? To what temperature assuming coiled wire? Is there a better wire to provide higher resistance that could be heated with low current?

    Thanks for any help.
    Basic Member
    Basic Member

    02 Apr 2013 02:37 PM
    1. If you maintain the same voltage and go with a higher resistance wire the power will go down.

    Remember P=I*V and V= I *R so P=V^2/R

    2. To determine the temperture rise in the wire you need to calculate the heat loss due to radiation and what is the specific heat of the nichrome wire.

    Niel Leon