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A parallel circuit is used when the current through several components needs to be independent of each other. The simplest example is that of lights in a home. The lights with their switches are wired in parallel. Turning on one light does not affect any others and similarly, turning a light off does not turn off any others. Each light is supplied with the same voltage which does not change even if other lights are turned on or off. A series circuit is one where the current flows through one component and then through a second component and so on. If the current flow through one component is changed, it is also changed in all the others in the series circuit. A string of Christmas lights is a good example. Removing one bulb from the string of lights will stop all the others operating because there is no current flowing through any of them.
The advantages of parallel circuits are that if one component, e.g. light bulb fails, the other ones will keep functioning. The problem with series circuits are that if one light bulb fails, the others are also affected.
on applying same power the one which glows brighter is the one connected in parallel connection.
One of the lights in the string that isn't working is faulty. Try replacing them one by one. Turn the power off each time you change a light.
If one light goes out on a series-parallel connected string, all of the lights in that particular series string will go out. The other parallel strings will not be affected. If you are asking about Christmas tree lights, please note that most modern low voltage bulb designs make the bulb short out, rather than open, when the filament burns out. This keeps the other bulbs in that series string on, although they now have more power and are more likely to also burn out.
Christmas tree lights, this parallel circuit prevents one bulb failure from turning off the whole string of lights.
The lights are wired in parallel.
A parallel circuit. All the lights are connected in parallel across the power source.
A parallel circuit is best because if one light goes out the others remain lit.
Removing any bulb breaks the continuity of a series circuit, stopping the flow of electrical current. Removing a bulb in a parallel circuit does not interrupt the current flow, so the remaining lights continue to conduct electrical current.
Consistent voltage. One of the advantages of parallel circuits is the fact that they ensure that all components in the circuit has the same voltage as the source. All bulbs in a string of lights, for example, will have the same brightness. Another well popularized advantage of the importance of a parallel circuit is the case of Christmas tree lights. At one point in time, if one light on the string of lights on the tree burnt, all the lights would go out and you would have to look one by one to see which one was the cause. This is because it was - guess what - a series circuit! In our modern parallel circuits on Christmas trees if a light goes out the rest will still light.
Something breaks the circuit.
Remember the old Christmas lights that were a simple circuit. When you plugged the string in, hopefully, they would light up. If they didn't light up, you had to take a proven good bulb and screw it in to each light socket on the string until you found the faulty bulb. With a string of lights wired into a parallel circuit, you or wouldn't have to do that. You could identify the faulty bulb right away because it would be the only one which did not light up.
-- Disconnect all the things that are hooked together in the parallel circuit. -- Put them back together in one long string ... so that there's only one path all the way from one end of the string to the other end.
Your house wiring, Christmas lights (usually ~50 are in series, so if you have a string of 200, you have 4 parallel groups of 50 series lights), sound systems using multiple speakers on a single channel (usually wired in parallel, but could be in series depending on speaker and amp spec).
A parallel circuit is used when the current through several components needs to be independent of each other. The simplest example is that of lights in a home. The lights with their switches are wired in parallel. Turning on one light does not affect any others and similarly, turning a light off does not turn off any others. Each light is supplied with the same voltage which does not change even if other lights are turned on or off. A series circuit is one where the current flows through one component and then through a second component and so on. If the current flow through one component is changed, it is also changed in all the others in the series circuit. A string of Christmas lights is a good example. Removing one bulb from the string of lights will stop all the others operating because there is no current flowing through any of them.
Basically, a series circuit is like a string of Christmas lights. There is a single path for an electrical current to run along. Along that string is a consecutive line of "resistors" (in this case, a light-bulb) through which the electricity has to pass. If one of these resistors breaks down, the electricity can no longer pass through and any resistor beyond the one that broke down no longer has power to turn it on. On a string of Christmas lights, if one little bulb goes out, it blocks the electricity for all of the lights beyond it. All of the lights are connected to the power source by the SAME path. A parallel circuit, on the other hand, is like the lights in your house. If one burns out, all of the others still stay on, right? This is because all of the lights are connected to the same power source, but by DIFFERENT paths. So even if one light burns out, it's separate from the other ones and so it doesn't affect it. This is the difference between series and parallel. In series, they are all connected to the same power source by the same path, with parallel it's the same power source, but by a different path.