Question

the resistance of a piece of silver wire is 2 ohm calculate the resistance of a constant wire of one third length and half the diameter as that of silver given that the specific resistance of constant is 30 times that of silver​

Answer 1

Step-by-step explanation:

Resistance = Resistivity * Length / Area

= 30 * (1/3) / (1/4)

= 40x.

Hence the resistance of the constant wire is 2 * 40 = 80 ohms.