Question

what is resistance and resistivity and formula with suitable example

Answer 1

Hola User_______________

Here is Your Answer.....!!!!!
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☆Actually welcome to the concept of Current Electricity and Resistance.....

Basically if we look deep ....then we come to know that ...

☆RESISTANCE....

☆It is the tendency or and ability of an conductor to avoid or resist the flow of electrons through it ...to reduce the current......

☆Basically the formula for resistance is

R = V/I

☆Where V is the voltage and the I is the current in the conductor....
the SI unit is ohm....

☆RESISTIVITY.....

☆It is the proprety of an conductor to resist the flow of electron ...which is per unit length and per unit area of cross section ,at a given temperature...

☆Basically the formula is

R = rho × l / A.....

☆where ,.. rho is the resistivity and I is length and A is area of cross section....
the unit is ohm/m....

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Hope it helps u....☺

Answer 2

Hey...
RESISITANCE:- R is the resistance is a measure to obstruction to flow of current.
RESISTIVITY:- Resistivity of a material is the resistance of a wire made of that material of unit length and unit area of cross-section.......
When L=1,A=1 then Resistivity=R..
Hope it will help u..