Question

Define Resistivity........​

Answer 1

Answer:

➡️The resistance of a conductor of that material, having unit length and unit area of cross-section.

➡️ SI Unit of resistivity is ohm metre.

• R = rho l/A

where ,

rho is constant of proportionality.

hope it helps you♥️

Answer 2

Answer:

$r \times y \: 63 + 52 \div 32$

r for radius

y = constant means you must be take any letter from alphabets

Explanation:

8y × 63 +52/32

504 + 13/8

429/8 is answer

hope it was help u