Resistivity also known as Specific resistance is a fundamental property of material that measures how strongly it resists electric current. [[1]] is the SI unit of resistivity.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Resistivity, also known as specific resistance, is a fundamental property of a material that measures how strongly it resists electric current. It is represented by (rho). The SI unit of resistivity is Ωm. The resistivity of a substance is the same as the resistance of a rod of that substance which is 1 metre long and 1 square metre in cross-section.
The formula for resistivity is,
Resistivity

(ρ) = \frac{R \times A}{l}

Where,
R= resistance of the conductor
A= area of cross-section of the conductor
l = length of the conductor
The resistivity of a substance is not influenced by its thickness or length. It depends on temperature and the nature of the substance.

Watch 3-min video & get full concept clarity