Question

What is the resistance and resistivity of the conductor if it's area is doubled

Answer 1

Resistance is directly proportional to the length of the wire, and inversely proportional to the cross sectional area of the wire. R = pl/A, where R is resistance, p is the material's resistance in ohms, l is the length, and A is the cross sectionalarea in m^2

If area is doubled then resistance become half.

Resistivity is the property of material it is indpendent of area and length of the wire.