Πως συνδέουμε παράλληλη και σε σειρά το ρεύμα How to Parallel and serial electric connection

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14 күн бұрын

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In this short video, I demonstrate a typical in series and in parallel electric connection, using two 100 Watt bulbs. These are made for DC power, so naturaly I'm using 12 V lead acid batteries.
Connecting the bulbs in series, is just connecting one lead of each bulb to each other, and using the remaining leads of each bulb to supply power.
In this setup, when supplied with 12 V power, the voltage is devided, and each lamp is getting 6V of power. Since the bulbs are incandecent, and each has it's own resistance, then the current that flows through them is the same for each lamp. It's like having a single 200 Watt bulb connected to the battery. Subsequently, the current that flows through the wires will be relatively low, compared to the parallel connetion.
The parallel connection is the next setup. In this case, we connect each of the bulb's leads to each other, and we supply 12 V power to each pair of wires. Now the 12 V power stays the same, both bulbs get 12 volts, and the current that flows from the battery is doubled.
Intrestingly, if we connect two different wattage bulbs in series, only the lower wattage bulb will light up. So if we want to connect two or more bulbs in series, all of them need to have the same wattage.
In AC things are a bit dangerous, but the same principles still apply. Of course, the bulbs that we want to power with AC current must be made to work with AC current, and not DC. But we can still connect them in parallel and in series.
A multimeter is a useful tool to recognise different voltages, either DC or AC.
The black probe is always connected to the "COM" outlet of the meter, while the red probe can be connected to either one of the other sockets.
The important part when using a multimeter, is to chose the proper scale for the voltage we want to measure. Always start from the highest setting, and work your way down. If we chose a lower setting, the screen will just stay empty, it won't show anything.
The procedure is the same both for DC and AC voltage, we only need to select different positions on the rotating selector. Never try to measure AC voltage, with the meter in the DC scale, or vice versa.
And always be very careful when measuring AC. AC is the most dangerous of the two.
Well, naturaly, also never attempt to short circuit the battery's terminals, or you'll have a huge explosion to remember the experiment.
(that is IF you live to tell about it.....)
Always remember to wear a proper set of gloves when working with electricity, and always use the proper tools.
Don't be afraid of electricity, simply know it and respect it.
Thank you very much for watching, and if you like what you see, consider subscribing.

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@user-he2gl7gm7r 12 күн бұрын

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@IoannisDiakopoulos 12 күн бұрын

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