Calculate the resistance of a copper wire cross section area 2*10_2 the resistivity of wire is 1.67*10_ohm metre

R = p * L/A

You have the p and A, but the resistance R depends on the length.

To calculate the resistance of a copper wire, you can use the formula:

Resistance = (Resistivity * Length) / Cross-sectional Area

In this case, you have the cross-sectional area and resistivity, but you haven't provided the length of the wire. Without the length, it's not possible to determine the resistance. Could you please provide the length of the wire?