An electric current of intensity l=5 A flows through a 12-gauge copper wire (diameter D=2.05mm) and a light bulb. The electron density of copper is n=8.5x1028 electrons per cubic meter. (e¯ = -1.6x10-¹⁹) 1) II) 33. Find the number of electrons that pass through the bulb in each second. Find the electric current density J (in A/m^2) on the wire. Find the drag velocity or drift of the electrons in the wire. If we double the diameter of the wire section, which of the above calculated quantities changes?
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