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Nairaland Forum / Nairaland / General / Education / Engineers In The House Please See If You Can Settle This Argument For Us (4379 Views)
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Engineers In The House Please See If You Can Settle This Argument For Us by iyke484real(m): 10:13pm On May 21, 2020 |
If a naked wire with current falls into a flowing river or lets say Lagos lagoon, will all parts of the lagoon electrocute when touch? If it will not, please elaborate...I am interested in knowing why. 2 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by ZAWs: 10:43pm On May 21, 2020 |
If an electric "naked" wire falls on the road, will the entire road be affected, or everyone gets electrocuted? 3 Likes 2 Shares |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by iyke484real(m): 11:27pm On May 21, 2020 |
ZAWs:but water is supposedly a conductor unlike the road u made mention of...at least for one to be electrocuted on the road there should be some form of contact with the naked wire.. 6 Likes 1 Share |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 11:27pm On May 21, 2020 |
iyke484real:if a conductor carries high voltage and fall in a water someone will get electrocuted when touch simply because electron get evenly distributed within few micro seconds.futhermore electric field and magnetic field are present in a transmission line now take for instance if u drop a magnet of north and south pole in a water and then taken back and placed beside each other it will still attract each other as a result of magnetic field present meanwhile water is a goood conductor of electricity that is why there is no power supply while raining,,,,,,,i stop here 5 Likes 2 Shares |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by welturebotanical: 6:35am On May 22, 2020 |
NDSMELODY: I am against this, water is a bad conductor but the impurities in water is facilitator of its conductivity. Speaking of conductivity and resistivity in a body as large as a lagoon, it is never possible for the same current at point A, to be at point G or point Z. Remember that resistance also takes a measurement from length of the material, which will reflect on the resistivity of the material and then conductivity Of the material. I am not a physicist but I didn't forget my little ideas in the university physics. 30 Likes 2 Shares |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by femi4: 6:37am On May 22, 2020 |
iyke484real:Water is a good conductor of electricity. A flowing one is even more dangerous, it can generate even a very high voltage. You don't wanna try it 1 Like |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by femi4: 6:39am On May 22, 2020 |
welturebotanical:You started poorly 1 Like |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by petredeshyan(m): 7:33am On May 22, 2020 |
Pure Water is not a STRONG conductor of electricity, and there's no way the Lagoon Water will be pure. So it'll surely conduct electricity 1 Like |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by SILVERLINES: 7:37am On May 22, 2020 |
OP most of us in the building are not engineering students but simple physics tells us that water is a good conductor. Naked with with high voltage inside water can electrocute someone to death |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by flames007(m): 7:37am On May 22, 2020 |
welturebotanical:op this is ur answer.Lets assume that the large body of water is in pure with salt,of course it can conduct electricity.But the twist here is that the electric current will only be strongly felt around the conductor.So as you get farther and farther from the current carrying conductor you feel less and less of the electric current. 9 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by dandaddy(m): 7:48am On May 22, 2020 |
femi4:He started brightly,I would say. First,water is a poor conductor of electricity. It only even poorly conduct b'cause of the impurities(dissolved minerals) which implies a pure water(distil) would barely conduct any electric charge. Second,answering the op questions directly we should understand the term current density,simply put it's a function of the surface area/volume of a material (medium) but in this case a flowing river. From this concept, current tends to zero the farther you're from the naked wire. You can only receive electrocution if you're close or within where the current density is suffix enough https://www.youtube.com/watch?v=U_8kOBmmiys 12 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by welturebotanical: 8:29am On May 22, 2020 |
flames007: Yes sir. That is why U can never use a wire for the nepa pole in wiring the interior of a house because the length and diameter will affect the resistivity and therefore the conductivity. 2 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by iyke484real(m): 8:56am On May 22, 2020 |
welturebotanical:now, if used in wiring the interior is it that it will not conduct enough current compare to the regular wire or is it based on it inflexibility otherwise how will the length and diameter affect it... please expantiate I want to learn. |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by femi4: 9:02am On May 22, 2020 |
dandaddy:No sane engineer/physicist will write that gibberish . Its only pure water that doesn't conduct. Water in its state as river is not pure 3 Likes 1 Share |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by gbadexy(m): 9:04am On May 22, 2020 |
welturebotanical:The lagoon is a very strong electrolyte because of the high salt content and would conduct electricity. However what I don't know if the voltage would be high enough for the whole lagoon since it's a large body of water. There would be electrocution in areas close to the wire though. Flowing water would likely contain some dissolved mineral salt from the ground also. |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by welturebotanical: 9:22am On May 22, 2020 |
iyke484real: when that interior wiring is connected to the government power supply you may still be able to get a good current if there's no fuse to break it down, but without fuse this current will be too high for all the home appliances and therefore will damage them, that is why all power coming from the pole are connected to a fuse that breaks it down to something ur home can take. When u connect this thick wire to that fuse, there will be fluctuation in the electricity of that house, because d current will want to wrap around that thick circumference n long length of the wire, before reaching each destination of every appliances and stuffs which will lead to low supply to ur appliances n bulbs etc, that is because the power from d pole has been broken down by the fuse. But I still need engineers to make corrections on what I said.. I may be wrong. 2 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by welturebotanical: 9:29am On May 22, 2020 |
gbadexy: There will be electrocution, but I can say there will be a sting in area far from the site of connection. But let's wait for the proper engineers biko |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 9:35am On May 22, 2020 |
welturebotanical:bro i am talking in term of transmission line not ordinary a conductor meanwhile would u use ordinary condunctor to transmit HVAC? Impossible i am electrical engineer in making......when u said water is not a good condunctor of electricity why do people get electrocuted when wet...i am waiting for ur ans |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 9:39am On May 22, 2020 |
femi4:leave him alone...sometimes people do boast on something wrong |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by nanyanuel(m): 9:44am On May 22, 2020 |
femi4:I think you are not quite getting the idea behind water being a poor conductor. Water being a poor conductor simply means it's conductivity is minimal compared to other good conductors. There is a huge difference between a poor conductor and an insulator. 4 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 9:44am On May 22, 2020 |
petredeshyan:even rain water has impurities |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 9:56am On May 22, 2020 |
femi4:dont mind them it is obvious they are diverting from the question being asked,i do not know how a lagoon or flowing river would not contain impurities, |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 10:00am On May 22, 2020 |
dandaddy:your assumption is wrong bro with respect to the question op asked,he said a lagoon not pure water even technically a pure water does not exist |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by ThrustReverser(m): 10:03am On May 22, 2020 |
Almost every conductor of electricity has some amount of resistance, pure water is not a strong/good conductor of electricity, but its conductivity may be increased by addition of impurities. A body of water such as the Lagos lagoon surely must contain impurities and hence can be seen as a potentially good conductor. Voltage is what drives current through a conductor. current through a conductor is directly proportional to the potential difference between its ends. The Lagos lagoon (being water with impurities) is a very large body of water and will tend to also have a large resistance to current from a source (the current-carrying wire suspended in it), and hence the effect of this current (say maybe a shock) will be infinitesimal or not felt at all at points far away from the source of that current. But if you take a cup of water from the Lagos lagoon and suspend a current carrying wire in it, and touch it, the rest will be history. My view though. 2 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by fr3do(m): 10:03am On May 22, 2020 |
Electric current flows from one point to another, from high potential to low potential. The earth, yes planet earth is the reference point for electric potential at 0v. For current to flow there must be a complete circuit, one of the ways humans get shocked is when they make a circuit with a live conductor and the ground. If a live conductor falls into the lagoon which a big enough body of water, the lagoon will complete the circuit with the earth so well that anybody immersed in the lagoon not too close to the wire (say 6 feet for 240 V) will not feel a thing. |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by welturebotanical: 10:19am On May 22, 2020 |
NDSMELODY: Am a chemist not an engineer. Pure water will not conduct electricity, except if there are impurities in it. Recall that if u touch a live wire without water in your hands u can still get electrocuted. Why is it so, this is because your body has salts that acts as a conductor of electricity inside of u, this is the same metal salts impurities we have in our waters that makes it possible for them to conduct electricity. When a pure water makes contact with electricity it dissociate, I.e the water molecules split up to H and OH, and this is a process of electrolysis and it's also use to obtain certain chemical compounds or elements. So assume our body is made of pure water, then when we come in contact with electricity the water molecules in us will dissociate. 2 Likes |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by Loris576(m): 10:21am On May 22, 2020 |
fr3do:Boss ur on fire |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by welturebotanical: 10:22am On May 22, 2020 |
NDSMELODY: Distilled water is pure water sir, and that is what we use in the lab, cosmetics and drug production. 1 Like |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by omowolewa: 10:42am On May 22, 2020 |
Hum! It depends on the voltage |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 10:44am On May 22, 2020 |
welturebotanical:as an engineer we consider safety first before designing anything that is why assumption is made that pure water is not ideally pure and remember that sweat that comes out from our body contains salt that is people get electrocuted without being wet. |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 10:47am On May 22, 2020 |
welturebotanical:distilled water still contain particles which increases its boiling point |
Re: Engineers In The House Please See If You Can Settle This Argument For Us by NDSMELODY(m): 10:49am On May 22, 2020 |
Loris576:u better dnt try that shit! Or else |
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