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Electric Current Through a Lightbulb

The Current Through a Lightbulb in a flashlight is 0.750 A.
a) How many electrons entered the filament every second?
b) How many electrons exited the filament every second?
c) Where do the electrons entering the filament come from? Where do they go after exiting?

Solution Preview

a) Let's first calculate the total charge entering Filament every second. From the
expression for current, i = qt, we have
q = i*t = (0.75A)(1s) = 0.75 C
Since one electron has an ...

Solution Summary

Solution contains calculations and a brief explanation for (a) through (c). 130 words.