I wasn't there, didn't observe the experiment, and haven't had the opportunity
to inspect the schematic diagram or review the circuit configuration. But if I had
to guess ... which I obviously do ... it would be my guess that EITHER each bulb
has its own individual battery or power supply, OR that both bulbs share the
same power supply and are connected to it in parallel.
pakyu
If you unscrewed any bulb in the circuit it would turn all of the bulbs off.
Electric bulb is basically an insulating device. By calling it an insulating device it does not mean that it completely disallows the flow of electricity! It means that the device or object resists the flow of electricity to some extent. It has a coil of a metal called Tungsten which resists the flow of electricity. Due to this resistance the coil heats up immensely and glows hot. However, this coil of Tungsten does allow some electricity to pass through so that the circuit of electrical flow remains closed/complete and the electric bulb remains lighted.
Electrical energy is being converted to light energy and heat energy
A gas thermometer is a device that measures temperature by the variation in volume or pressure of a gas. It is made by filling a bulb with gas such that the volume of the gas in the bulb remains constant.
pakyu
You break the circuit and they both extinguish (go out).Answer: The circuit will open up causing the current to quit flowing to both bulbs therefore there will be no lighted bulbsCommentYou also have the full supply voltage appearing across the empty lampholder!
if the one bulb is not lighted the all is no lighted
A light bulb can be unscrewed. Hahaha
Parallel circuit
inspiration, or a bright idea
in bangalore
It would not be dangerous to leave a light bulb partially unscrewed, however, there is some possibility that it will fall out of the socket. I would advise that if you don't want the bulb to be on, and you don't have a light switch, unscrew the bulb completely and put it away until you need it.
That is e.g. the resistance of a cold bulb before the bulb is lighted and heats up.
Chemical to radiant(light:)
If you unscrewed any bulb in the circuit it would turn all of the bulbs off.
The bulb "pulses" because the circuit is not completely off. If the CF bulb is pulsing or flashing, it means that there is some kind of feedback loop providing at least some voltage to the bulb. Often lighted switches use the filament resistance to provide voltage to the internal bulb. Get rid of the lighted switch.