Question

what do you mean by resistivity? derive r=row ×l/a
डू यू मीन बाय सीबीटी जरा एक बार बराबर 2 गुना 1 बटा ​

Answer 1

Answer:

Resistivity, commonly symbolized by the Greek letter rho 'p' is quantitatvely equal to the resistance 'R' of a spicemen such as a wire multiplied by a cross sectional area A and divided by its length 'l ; 'p=RA/l. The unit of resistance is ohm.

Answer 2

Answer:

resistivity is a constant term it the unit of resistance and rho is the unit of resistivity