Education homework help

A cylindrical wire of polycrystalline solid material with a diameter of 5 mm and a length of 57 mm passes 0.44 amperes in the axial direction when avoltage of 19.5 volts is measured across two probes that are separated by 41 mm and are symmetrically positioned with respect to the center of the wire.Compute the conductivity of this material in units of inverse ohm-meters:  (?-m)-1