The formula to calculate the resistance of a nichrome wire (R) is:
R=p⋅LA
Where:
Nichrome material has a resistivity of 150×10−8 ohm-meters, so the total resistance will be determined by the diameter and the length of the wire.
Let's assume the following values:
Using the formula to calculate the Resistance (R):
R=150×10−8⋅20.0001=0.003ohms
The Resistance (R) is 0.003 ohms.