Question

Calculate the resistance of 50m length of wire of cross sectional area 0.01 square mm and of resistivity 5 multiplied by10-8 ?

Answer 1

given resistivity =5*10-8 ,length=50m ,area of cross section=0.01squaremm ,by using the above method ressistivity can be calculated

Answer 2

l = 50m

cross section area = 0.01 mm2

p= 5 ×10^-8

We know

R = p×l/a

R =