Question

drieve the expression for resistivity of conductor​

Answer 1

Answer:

p=R * A/ l

Explanation:

R (Resistance) is directly proportional to lenght i. e as Length increases Resistance also increases and vice versa.

and R (Resistance) is inversely proportional to Area of Cross-Section. i. e as Area of Cross-Section decreases Resistance increases and vice versa.

R = p (Resistivity as proportionality constant )* A (Area Of Cross-section) / l (Length )

p is pronounced as rho and it is a proportionality constant.