Question

the length and area of a wire is given as 0.2m and 0.5m .the resistance of that wire is 3 ohm .find out the resistivity​

Answer 1

Answer:

Calculate the resistance of a metal wire of length 2m and area of cross section 1.55 x 10^-6 m^2, if the resistivity of the metal be 2.8 x 10^-8 ohm m.

Answer 2

Given

R = 2 Ω

l = 15 cm = 0.15 m

A = 25 cm2 = 0.25 m2

Resistivity formula is

Resistivity Formula

Resistivity Related Solved Example

Problem 2: The length and area of wire are given as 0.2 m and 0.5 m2 respectively. The resistance of that wire is 3 Ω, calculate the resistivity?

Answer:

Given

R = 3 Ω

l = 0.2 m and

A = 0.5 m2

Resistivity formula is

Resistivity Formula

Resistivity Related Solved Example