Question

What is meant by resistance of a conductor name and define its si unit?

Answer 1

Resistance is the property of the conductor to resist the flow of current.
SI unit of Resistance is Ohm. The resistance of current depends on Material of the wire, length and cross-section area of the wire and temperature. I hope the answer was helpful to you If it was please mark it as brainlist ❤️

Answer 2

resistance is a property of all matter due to which the matter resist the flow of electric charges through them.
The resistance of conductor depend on four factors (as I know):

1. nature of material of conductor
2. temperature
3. length of conductor
4. cross sectional area of the particular conductor.

one interesting thing here is to note that the nature of material actually determine the resistance of a given conductor with a particular length and cross sectional area, given that temperature remain the same.
It is a constant called resistivity denoted by ρ(rho). Resistance R is given by:
R = ρ•(L/A)
where, L is length and A is cross sectional area of the conductor.

Also, as long as temperature remains same,
R is also given by:
$R = \frac{V}{I}$
where, V is the potential difference across the conductor and I is Electric Current flowing through it. It is called Ohm's Law.

so unit of resistance is:
1 Volt/ 1 Ampere= 1 Ohm
Ohm is denoted by symbolΩ.