How thickness is a factor on which resistance of a conductor depends??
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Thickness is the cross section area of conductor which is one of the factor on which resistance of a conductor depends.
Resistance of a conductor is inversely proportional to cross section area of wire. When area of cross section of wire is doubled the resistance becomes half and vice-versa.
This is the reason for which thick wire has less resistance with respect to thin wire.
Resistance of wire is inversely proportional to square of diameter are radius so when the diameter is doubled or the radius is doubled the resistance becomes 1 /4 or vice versa.
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