Q33: An aluminum wire with a diameter of mm has a uniform electric field of V/m imposed along its entire length. The temperature of the wire is C. Assume one free electron per atom.
(a) Use the infor- mation in Table 27.2 to determine the resistivity of aluminum at this temperature.
(b) What is the current density in the wire?
(c) What is the total current in the wire?
(d) What is the drift speed of the conduction electrons?
(e) What potential difference must exist between the ends of a -m length of the wire to pro- duce the stated electric field?
ρ₀= the resistivity of aluminium at temperature T= t₀=C.
density of aluminum=
α= , temperature Coefficient at temperature C.
atomic mass of aluminium
au=