Gold has one conduction electron per atom. Its density is 19.3gr/cm3,molar mass is 197 gr/mole, and resistivity is .A gold wire with length of 155 cm and 0.247 mm diameter has a potential difference across its endpoints of 3 Volts. Determine the following:

a) The Electric Field E in the wire:

b) The number density n:

c) The drift speed vd of the electrons in the wire:

d) the electron collision frequency;