Question

Resistance of a metal wire of length 1 m is 26 ohm at 20 C. If the
diameter of the wire is 0.3 mm, what will be the resistivity of the
metal at that temperature? Using Table 12.2. predict the material
of the wire.​

Answer 1

Answer:

R = p L/A

p = resistivity

L = Length

A = Area (πr^2)

r = Diameter/2

Put Value