Electrical resistivity of nichrom is 100*10 to the power -6 ohm metre. calculate the resistance of a nichrome wire 110cm long of 0.5mm diameter

nichrome-wire

#1

Electrical resistivity of nichrom is 100*10 to the power -6 ohm metre. calculate the resistance of a nichrome wire 110cm long of 0.5mm diameter.

Answer:

Given:
Resistivity=10010^(-6);
Area=3.14(0.5
10^(-3))^2/4 m^2;
Length=1.1m;
Resistance=resistivitylength/area;
Resistance={100
10^(-6)}1.1/0.196*10(-6)
=561.22ohm