Question

A material of length 1.2 m and cross-sectional area 6 x 10‾⁸ m² has an electrical resistivity of 44 x 10¯⁶ Ωm. What is the resistance of the material

Answer 1

Hi,

Here is your answer

Given:

Length(l)=1.2m

Area of cross section(A)=6×10^-8m²

Electrical resistivity(ρ)=44×10^-6Ωm

To find:

Resistance(R)

Solution:

Resistance is given by the equation

R=ρl/A

Substituting the given datas in the equation

We get,

R=44×10^-6×1.2/6×10^-8

R=8.8×10²Ω

Hope this helps you.

Answer 2

Answer:

r= 8.8×10²Ω is right answer good night