Circuit Help
A set of Christmas tree lights consists of 40 identical filament lamps connected in series across a supply of 240 V.
In an alternative design for the set of Christmas tree lights, a 100 Ω resistor is connected in parallel with each lamp.
If one lamp filament burns out, why does all the bulb switch off in the first circuit but none of the bulbs switch off in the second circuit?
Can someone explain this?
In an alternative design for the set of Christmas tree lights, a 100 Ω resistor is connected in parallel with each lamp.
If one lamp filament burns out, why does all the bulb switch off in the first circuit but none of the bulbs switch off in the second circuit?
Can someone explain this?
If the lamps are in series and one breaks then the other will go off because the current has to go through all of them, therefore if one breaks then the circuit is not a complete circuit anymore.
If the lamps are in series than if one will break then the other will not be effected because there is a potential difference across all of them, in other words the current splits up at the junctions, and therefore the circuit is still complete.
If the lamps are in series than if one will break then the other will not be effected because there is a potential difference across all of them, in other words the current splits up at the junctions, and therefore the circuit is still complete.
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