Question

10. Define resistivity and state its S.l. unit.​

Answer 1

Answer:

its SI unit is Ohm but I don't know resistivity

Answer 2

Answer:

resistivity is a property of a material rather than a wire

Explanation:

so it does not change even if there is a change in shape, size, length, etc.

formula is given as

p=(RA)/l

where -l is length of wire

-R is resistance of wire

-A is surface area of wire(πr^2)

S.I. unit: ohm-meter

difference between resistance and resistivity: resistance is of a wire while resistivity is of the material the wire is made of