A string of lights wired together in a series has a burned out bulb. Why do all the

  • Thread starter Thread starter mrs.jonas
  • Start date Start date
In series any burned out lamp opens the circuit.
You need a complete circuit for current to flow.
Diagram it.
 
The reason that all of the lightbulbs go out is because the circuit was disrupted. When one of the lights went out it caused a break in the flow of electricity making an open circuit. If the bulb is taking out or replaced the circuit will become a closed circuit and they should all work again.
Some lightbulb strings have a parrolal circuit (with mor than one power source connected to different spots). So if one bulb stops working the other are not affected.
 
then ask it another way.

ONE lightbulb connected to a power source... the positive wire to the bottom of the bulb, the negative to the casing of the bulb...

you disconnect one of the wires and the light goes out... why?

all wiring "in series" means that any break anywhere in the connection results in the whole circuit being broken.
 
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