The number of electrons delivered daily to an average American home by an average power utility in the early 21st century was
A) zero.
B) 110.
C) 220.
D) billions of billions.
E) none of the above
Question 2
Electrons that are energized to glow in the filament of a common ac lamp are
A) supplied by a wall outlet.
B) supplied by a wall outlet, which in turn are supplied by your power company.
C) electrons already in the filament.
D) none of the above