An iron wire has a cross-sectional area of 1.14 10-5 m2. Carry out steps (a) through (e) to compute the drift speed of the conduction electrons in the wire.
(a) How many kilograms are there in 1 mole of iron?
kg/mol
(b) Starting with the density of iron and the result of part (a), compute the molar density of iron (the number of moles of iron per cubic meter).
mol/m3
(c) Calculate the number density of iron atoms using Avogadro's number.
atoms/m3
(d) Obtain the number density of conduction electrons given that there are two conduction electrons per iron atom.
electrons/m3
(e) If the wire carries a current of 9.0 A, calculate the drift speed of conduction electrons.
m/s