Voltage Drop in Electrical Circuits 

Why the hell has someone thumbed this down? Some people just hate education.

Dude, this is why I insist on only 24 ct gold electrical cabling... Also why I am deeply in debt.

This video doesn't make a lot of sense to me. I would have thought that the diagram has the first resistor being the voltmeter and then the kettle would be in parallel to the right of it with a switch in series with the kettle. To me it then wouldn't make any sense that once the switch is closed that the voltage across the voltmeter would change as I've always been taught that voltages across parallel resistors are equal.

Checked all my houses power outlets and ALL are only at 60 Volts. Where my research online says standard household outlets should be 120 Volts. I am so very upset since we have been living here for 14 years now. Smh.😠 Now, What to do next and what route should i take is the question here. Should i try to find fix myself, should i pay for a electrician to come handle this, or should i call original builders of home and complain to them about how n why this issue is happening. Smh. I am not a complaining type person. I believe in when there is a problem > Find the solution with patience, good research on issue and hard work but this electrical issue is a bit of problems since i am not a electrician and even though i have fixed a few electrical problems in past, this issue feels like a professional is better suited to handle. Honestly i just cant believe the whole house is at 60 Volts. I mean now it makes sense why so much appliances n etc stopped working in past and so many electrical outlets just stopped working (which wete fixed by a electrician the family hired) wonder why the hek didnt he see this issue? Smh, honestly i am bit frustrated the more i think about this issue and i getting frustrated is not my style. Ok well i am sorry to have dragged this on, guess i am just venting a bit. Apologies and thanks again for this content. Wish u and all many blessings n continued safety👍🏼

Got to be the best online tutor in this field, every video is clear and made to be understood by even for the most novice amongst us. Cheers JW 👍🏻

JW should have been a school teacher, I might have gone to school then, love the vids JW

That reminds me of a similar issue we had up until about 15 years ago, but in our case it as a 6 volt drop for a 2kW load (e.g. Kettle) as our mains supply ran for something like 500 metres to the transformer. It wasn't a major issue until my my brother (who lived with us back then) got a 35A welder! When I reported the voltage dropping issue to ESB Networks, in just 2 weeks they extended their high voltage lines right up to near our house, fitted a new transformer and now the voltage drops by about 2V in the socket next to the kettle when switched on.

Does this mean the kettle only uses 10 volts

Image their claimed 7kW - other than that water broiler wouldn't work (computer, tv, spark of the stove, even the lights would dimm).

I'm glad you clarified the reason for the low voltage shown during your demonstration. I was very surprised because the UK power grid is generally pretty well-regulated and I was surprised to see the voltage drop below 216.

Really starting to like this guy with his straight forwardness and bluntness.

Your delivery and content are sublime. Thank you for uploading.

Great video as usual John. I had an issue similar to that house you demonstrated on, apart from voltage here dropped to ~100v. It took WPD so long to do anything about the fault in the street that the cable under the footpath actually blew up one evening, taking out one of the phases and therefore a third of the street for over a day whilst they temporarily re-connected people to a different phase whilst they made the repair (which typically involved them destroying my front lawn, again).

Your explanations are so simple to understand. Thank you, John!

Hi john I have my 17th edition exam on 15th of feb and I must say your videos have helped massively in understanding certain things that I was unsure of to start with. thanks pal :)

Thank you John, I am more accomplished in mechanical engineering than anything else, however I am fully aware of how useful knowledge electronics is. I am slowly getting my head around it.

Great video and explanation John, I really enjoy your videos as you explain them in good detail that are easy to understand for both students and experienced Electricians like myself. Keep up the good work. 👍

You do brilliant work thank you I always use your videos too brush up on things I'm not 100% sure

youre a good teacher, I wish you teach millions of students.

Very useful, clear and concise information as are all your video's. Thank you. Aside, your presentation reminds me of the 1970's Open University programmes that used to air on BBC2 in the wee small hours (showing my great age now!). That's meant as a compliment by the way :-)