Some strings of holiday lights are wired in series to save wiring costs. An old version
Chapter 21, Problem 8(choose chapter or problem)
Some strings of holiday lights are wired in series to save wiring costs. An old version utilized bulbs that break the electricalconnection, like an open switch, when they burn out. If one such bulb burns out, what happens to the others? If such a stringoperates on 120 V and has 40 identical bulbs, what is the normal operating voltage of each? Newer versions use bulbs that shortcircuit, like a closed switch, when they burn out. If one such bulb burns out, what happens to the others? If such a string operates on 120 V and has 39 remaining identical bulbs, what is then the operating voltage of each?
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