Without starting to look at your video, I clicked like button because I know that your teaching is awesome sir 😄🤩
@AlecDenholm
4 жыл бұрын
This doesn't make sense. To do V=IR, you need to know two values to get the third. You start by saying the V is 5 and the R is 100, although you correct yourself that V is 2; but how do you know it's 2? You can only know it's 2 be either measuring it (which you didn't mention) or by calculating it, but you can only calculate it if you already know the current, which is what we're supposed to be measuring. In other words, the only known value in this video is R=100. V is assumed to be 2 only because we know the LED is 20mA, but if we knew that, measuring the current is redundant. I suppose if we knew the LED was 3V you could infer that the resistor is resisting the other 2 from the 5 but again this isn't mentioned, nor is it a certain assumption.
@remyzieltjens2050
5 жыл бұрын
You still are a good tutor . I like you,re video,s and learn a lot Thank you for you,re time
@whoisntwhoisit2126
7 жыл бұрын
grumble, again you question something then dont explain it, why was the power supply expected to put out 1 and only putting out 0.45, do you not know why? if not then can you say this instead of leaving us wondering? hard to remember things when all i can think of when it ends is "why is it putting out less than half what its suppose to" and no way to ever find the answer..
@whoisntwhoisit2126
7 жыл бұрын
I should also say thank you very much for these videos, they are extremely helpful even when im left confused about something else..
@godwinobas
5 жыл бұрын
There's no load on the circuit. The load is what draws the current from the power supply.
@JerryRecords
4 жыл бұрын
It may also be worth mentioning that you shouldn't measure higher current by touching the actual wires and probes with your bare hands. This is why he had the wires inserted into the breadboard to have the current measured.
@AbdurohmanAtsarQ
5 жыл бұрын
it would be a lot better if you explain the entire parts and numbers on the multimeter, but don't get me wrong your video is very helpful !
@dogsenjoyinit7659
7 жыл бұрын
Subscribed. I love the tutorials.
@nickayivor8432
2 жыл бұрын
SUBSTANTIAL SIMPLY ELECTRONICS Helpful information video thank you very much Take care and have a great day SUBSTANTIAL SIMPLY ELECTRONICS From Nick Ayivor from London England UK 🇬🇧
@igorzkoppt
5 жыл бұрын
Lol I got the very same multimeter in a supermarket.Disturbingly cheap but it does the job for basic circuits.
@kevinsono
4 жыл бұрын
Was the part you edited in "2 volts! (Across resister)" supppse to mean that was the actual input voltage instead of the 5 volt USB power supply you talked about earlier??? That would explain how you got 0.02A instead of 0.05A
@stevewright7937
4 жыл бұрын
I'm sure you've figured this out by now, but it's because the Forward Voltage of the LED is 3V, so the voltage across the resistor is 2V. If the resistor wasn't in there, then yes, the current would be 0.05A, but also the LED would probably burn out because it's likely rated for 0.02A.
@dougscott2408
4 жыл бұрын
the voltage wires were plugged into the bread board... did it matter ? did the rest of the circuit give a faulty result on the amperage?
@JerryRecords
4 жыл бұрын
They were plugged into the breadboard. However, he didn't have a circuit attached to both those lines. By inserting the probes into both those lines, he was closing the loop with his meter. He was verifying how much amperage his power supply was actually supplying.
@user-su5sq5ib3i
4 жыл бұрын
Why is there no resistance in diodes?
@Santoshkumar-pk9sg
6 жыл бұрын
Hello sir..can u tell ... How will check the capacitor Farad in Clamp Multimeter [UNI-T UT202A]
@Santoshkumar-pk9sg
6 жыл бұрын
??
@SimplyElectronicsOfficial
6 жыл бұрын
You'd need a multimeter with the ability to measure capacitance. Or an LCR meter
@Santoshkumar-pk9sg
6 жыл бұрын
thank you sir
@rahulmaurya3886
5 жыл бұрын
Ummmmmm soooo I connected the leads to the mains and guess what KABOOOOMM!!! THE MCB TAKES OVER.
@RickinICT
3 жыл бұрын
Yeah, it was pretty irresponsible of him to suggest checking a power supply's output current by shorting the leads with am ammeter without some important safety caveats. That's a good way to get someone hurt if they do it with mains, or potentially ruin a DC power supply.
@nizarch22
3 жыл бұрын
@@RickinICT True. Then again, if you're measuring mains, then you're supposed to know that the amperage is way more than 10A (at least in 240v sockets), which is the maximum on most multimeters.
@kevinsono
5 жыл бұрын
What was the resistence on the LED
@lasse3412
2 жыл бұрын
Great video
@testslo-ej7bc
6 жыл бұрын
i have the same multimeter!!!
@dogsenjoyinit7659
7 жыл бұрын
I had a question, why can't battery amps stay the same. What I mean by that is, why does the amperage increase to 100+ If the battery is shorted.
@wazzap500
6 жыл бұрын
omer khan Ohms Law. I = U/R. When you shirten the battery the resistance between the contacts gets really low so you current gets very high.
@boogeyman6114
5 жыл бұрын
4:46 you connect in series but i see you connect it in parallel
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