what is electric Current? mention the use
of battery in an electric current write the factors on which the resistance of a conductior depends
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The resistance of a conductor depends on thickness (cross sectional area of the wire), length and temperature.
Resistivity is defined as the measure of the resisting power of a specified material to the flow of an electric current.
R=ρ* A/l
where R = Resistance of the conductor
ρ = Resistivity of the conductor
l = length of the conductor
A = Area of cross section
i.e., ρ=R *l/A
Unit of resistivity is Ωm
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