Nichrome Wire Resistance Calculator

Nichrome is also known as Nickel-chromium (NiCr). It generally refers to alloys in wire and ribbon form. In this Nichrome wire resistance calculator, you can find the resistance of Nichrome wire based on the cross sectional area and length values.

m2
m
Ω

Nichrome is also known as Nickel-chromium (NiCr). It generally refers to alloys in wire and ribbon form. In this Nichrome wire resistance calculator, you can find the resistance of Nichrome wire based on the cross sectional area and length values.

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Formula:

Nichrome Resistance = ρl / a Where, ρ = resistivity constant of nichrome = 1.10 x 10-6 ( Ω.m ) l = length of the wire (m) a = cross sectional area of the wire (m2)

Example

A wire of 7 m with cross sectional area of 15 m^2, has a resistance of
= 1.10 x 10-6 x 7 / 15
= 0.5133 ohms

Nichrome is any of various alloys of nickel, chromium, and often iron. Nichrome wire is most commonly used as a resistance wire. They are also used in some dental fillings and in a few other applications. It is also known as NiCr, nickel-chrome, chrome-nickel, etc. In electric ignition systems, Nichrome wire mainly used as a bridge wire in the explosives (bombs) and fireworks industries. Measure its resistance at a known temperature, and calculate what resistance you expect at the desired temperature using this Nichrome Wire Resistance Calculator.


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