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Eletrical Circuit Question - Printable Version

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RE: Eletrical Circuit Question - roger_smith - 05-05-2015

(05-05-2015, 01:08 AM)Touka Wrote: too lazy to read the above posts so if this has already been answered, oops.

The bulbs would all stay on and the source (battery) would be fine for a few reasons.
  1. the bulbs are connected in a parallel block, making the copper joint a resistor
  2. because the copper acts as a resistor, it acts like a load
  3. Voltage stays the same, even when a parallel circuit is the type in question, meaning that if your source is 6 V, 6 V is what's flowing through each joint, dividing itself among each bulb in the joint.

The copper added to bulb 7's location wouldn't act as a resistor unless it was resistor wire, in which case it would heat up.


RE: Eletrical Circuit Question - Inori - 05-05-2015

(05-05-2015, 01:19 AM)roger_smith Wrote: The copper added to bulb 7's location wouldn't act as a resistor unless it was resistor wire, in which case it would heat up.

But addressing OP's question, (to the best of my knowledge) the copper wouldn't cause a short circuit.


RE: Eletrical Circuit Question - roger_smith - 05-05-2015

(05-05-2015, 01:58 AM)Touka Wrote: But addressing OP's question, (to the best of my knowledge) the copper wouldn't cause a short circuit.

It wouldn't cause a short in the sense that there would be a short to ground causing damage to the battery or conductors. It would however likely stop bulbs 3-6 from lighting.


If @tiszy doesn't set up a lab to test this I will try and do so when I get some free time.


RE: Eletrical Circuit Question - Nyx - 05-05-2015

(05-04-2015, 11:17 AM)Eclipse Wrote: What are you doing messing with electricity if you don't know what a fuse is? o.O

A fuse is a little bitch that breaks if the current flowing through it gets too high. Like an asshole rips if the dick going through it is too big. When this happens, the circuit breaks and everything stops, including anal.

Lmao I'm not messing with electricity, our current chapter in our science class is about creating electrical circuit diagrams. Next chapter we start building very basic circuits. I'm only in the 9th grade (year) so nothing too complicated. I wouldn't go near a real circuit with a 50ft insulated pole unless I knew what I was doing.

Also that analogy with beautiful.

Edit: I just realized after posting there is a lot of insanely high quality posts on here, thanks guys Biggrin


RE: Eletrical Circuit Question - pizzaguy541 - 05-05-2015

(05-04-2015, 04:54 PM)roger_smith Wrote: I disagree @tiszy

If you put a piece of copper in bulb 7, you're effectively cutting bulbs 3-6 out of the equation entirely. Those light bulbs all have a certain level of resistance (that's why they light up) and the copper replacing bulb 7 should be a lower resistance. Therefore, the electricity would follow that path, bypassing the additional legs of the parallel circuit. Meanwhile, bulbs 1 and 2 would still be in series, meaning that (assuming a 12v system) each bulb would use approximately 6v EACH. We of course making A LOT of assumptions here, things like batt voltage, the bulbs being the same, etc. Obviously if bulb 1 is an LED and bulb2 is incandescent, that changes a bunch of stuff.
Roger_smith has explained it nicely.

This is the correct answer.


RE: Eletrical Circuit Question - Lysergide - 05-05-2015

What @Tiszy posted is just plain wrong.
@roger_smith explained why, and I can confirm what he said: I am 100% sure he's correct.


RE: Eletrical Circuit Question - roger_smith - 05-06-2015

@tarew are you guys going to build this circuit to test it? I was looking into buying some bulbs today and mocking this up at some point. With 7 bulbs though, it gets a little pricey, lol.


RE: Eletrical Circuit Question - Nyx - 05-06-2015

(05-06-2015, 04:28 AM)roger_smith Wrote: @tarew are you guys going to build this circuit to test it? I was looking into buying some bulbs today and mocking this up at some point. With 7 bulbs though, it gets a little pricey, lol.

It was just a question for my science test so probably not (unless we go to the lab to do an experiment and then I'd have the chance to try it out).


RE: Eletrical Circuit Question - Inori - 05-07-2015

(05-06-2015, 09:35 PM)Tarew Wrote: It was just a question for my science test so probably not (unless we go to the lab to do an experiment and then I'd have the chance to try it out).

Ask your prof for some kits. If we have them in 9th grade in a public school, you do, too.


RE: Eletrical Circuit Question - Nyx - 05-07-2015

(05-07-2015, 03:04 AM)Touka Wrote: Ask your prof for some kits. If we have them in 9th grade in a public school, you do, too.

I'm also in 9th grade public school Evil