Question

state the ohm's law, resistance, resistivity, conductivity.

give detail answer plz.

Answer 1

Hi

Here devil1407

Ohm's Law:
                    It is a law which states that electric current is directly proportional to voltage and inversely proportional to resistance.
                           V∞I
                or        V/I = constant
                                 = R
                           V = IR

Resistance:
                    It is the property of a conducor to resist the flow of charges through it.
                    Its SI unit is ohm, it is represented by the Greek letter  ‎Ω .
                               1 ohm = 1 volt/1 ampere
                                  I = V/R

Resistivity:
                   The electrical resistance of a wire would be expected to be greater for a longer wire, less for a wire of larger cross sectional area, and would be expected to depend upon the material out of which the wire is made.
                                R∞l
                               R ∞ l/A
                               R ∞ l/A
                               R =  l/A
The SI unit of resistivity is ‎Ω m.

Conductivity:
                       The inverse of resistivity is called conductivity. There are contexts where the use of conductivity is more convenient.
                            Electrical conductivity = σ = 1/ρ

Hope it helps u

Thanx......Bye

Answer 2

Referred to the attachments.

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