Rheostat & Potentiometer - Operational Theory

[@sirlancelot-II]

I want to say thank you so much Mr. Sullivan, a teacher that took his time to explain the theory. I am just beginner in electrical and mechanical engineering knowledge but this video greatly boosted my understanding and I am proud to be taught by you.

[@Mainbusfail]

Thank you Mr. Sullivan I a 51 years old and needed a little refresher - manufacturer reps cannot be trusted to be correct about these two components which got me questioning my 1989 Avionics Training. You are exactly like my instructor at Spartan School of Aeronautics and he was amazing.

[@tboneproductions2453]

FANTASTIC EXPLANATION! I’ve had an ongoing discussion with guys at work over how the signal wire works on a potentiometer. Sad to say, but no one could explain why if the signal wire had a ground connection it wouldn’t use that as a path to ground rather than the third wire. The old path of least resistance. We knew how to test them , but no one had an idea of how it’s designed. If I understand Mr. Sullivan’s explanation, then essentially the E.C.M. signal circuit is using something like a DVOM to do a voltage drop test. Looking forward to going to work and being able to explain this to the guys. So often we are told that we’re mechanics not engineers and we don’t need to know the theory behind stuff. That is just unsound reasoning to me. Thank you Mr. Sullivan. Your teaching ability is greatly appreciated

[@laxiton]

Clear way of teaching things, thanks. And indeed, if it's as an electrician, a painter, etc it all starts with paying attention to details and looking.

[@jesseruiz4367]

read your book and now I'm watching your videos and I really appreciate how you simply explain things to make sence.

[@MukeshSingh-xy7cz]

Good morning sir from India. Your videos instill a process of thinking. The words that you use remains when I am diagnosing electrical problems Thanks🙏

[@peterbrenc7669]

The light has come on!!!!! It sometimes takes me many times to understand things. Your explanation here made the penny drop second time around. Thank you!!!!

[@johnm8512]

Daniel, what a fantastic video tutorial...Love the disarming "magic" at the beginning. Thank you.

[@jparson3309]

Great video my friend. Bought your book and the Loadpro you are a mastermind.

[@mikeadler434]

Another great video. thank you for taking the time to create it.

[@niamhmarcyne2975]

7:37 That crappy image was the last thing I wanted to see today, just ruined my day and my appetite for my coffee🤮🤢🤮

[@botsbass842]

If I had you as a professor I wouldn't have hated such a large part of my life as much as I did

[@bivideo7]

Always look forward...

[@profpaulobrites]

Excelent. I m looking for the meaning of words rheostat and potentiometer and I ve got here. Congratulations

[@willierodriguez2173]

muchas gracias Daniel this world needs more people like you..

[@chanous1]

Question here : at 20:23 on your video clip , you said connect the terminal no-1 to positive and the other end of the wire wound as supposed to be no-3 to the ground ? So, if that not create a short circuit ,the fool was me ?

[@AzeveidoMateus]

Really well explained. The visual aid was very helpful.

[@petrocksgarage]

Great video. You explain things in such straight forward ways. I completely agree with your statement of "it's always something simple" and the "80% wires" rule. It frustrates me when people instantly jump to the part without testing the wires first. Question: if you cut the ground side pin off a potentiometer would that make it into a rheostat? Thanks...

[@bivideo7]

Answer: Yes. Pure rheostats are not that common today, though you can get them. Most of the time you simply connect terminals 1 and 2 to the circuit, and jump terminals 2 and 3. However, your answer is correct. Cool. Nice job.

[@skagleather754]

Extremely helpful video, thanks for sharing (though the diarrhea picture was unwanted...)

[@hddm3]

THANKS for all your videos! love your meter leads too. happy thanksgiving

[@starcarrier1874]

Oh, is that what mechanics do? I learned more from mechanics over the years than I did watching some teacher burn his fingers three times in a row on a rheostat.

[@michaelball7255]

Enjoyed your video, like your style, ordered your book. Many thanks.

[@mzee5533]

Something you need to keep on remembering

[@CapitolForest]

FYI - 17:50 - "rheostat has 3" - "2?". Good video. Thanks.

[@marcolpz1711]

Your an awesome teacher very informational 👍

[@MungeParty]

@23:07 wouldn't the resistance from the green crap only drop the amperage, not the voltage, per (volts / ohms = amps) explained earlier?

[@bivideo7]

+MungeParty Voltage drop = Amps x Ohms. Voltage drop is not optional. Each drop has a certain voltage - each voltage drop is a function of the resistance. If there's only one drop it's total. Individual drops have to add up.

[@bruce1164]

At 13:06 you put the symbol for a fuse or a sine wave and called it a battery.

[@jasonkister846]

thanks for making the video.i like your teaching style.

[@leanrtospeel]

Awesome video! It helped a lot thank you so much!!

[@georgebonney90]

What a great explanation,thank u👍

[@codenamebravo2212]

Thanks I've subscribed your theory makes sense, can you tell me what that bag trick is I want one ha ha cheers.

[@patjohn775]

Is a dimming 110v light switch a rheostat then?

[@АндрейЯковлев-ы7ф]

Thanks for the video ! VERY INSPIRING!!!!!!

[@bivideo7]

пожалуйста

[@321anmol]

Nice tutorial sir.

[@general23cmp]

Is an audio volume potentiometer considered a sensor?

[@bivideo7]

Yep - it's sensing the desired audio level. It's a little loose, but it's still technically correct.

[@adamjohnston8126]

keep this great content coming!

[@morocotopo01]

hello sir sullivan. I am a fan of your videos and I am dedicated to the automotive electricity I would like to access the load pro and your book if there translated into Spanish, I expect a response from you greetings from Uruguay pd. sorry for my English because I am utilisando the google translator

[@Crispybruno]

We’ll I’m here mr Bixby😂

[@ObiTrev]

I have a 3 pin Rheostat, can it be used to divide voltage similar to a potentiometer?

[@bivideo7]

Hmmm - well, 3 = potentiometer. So, I'd say yes. Unless there's something about it I don't understand. Why are you calling it a rheostat?

[@ObiTrev]

Daniel Sullivan It has a spring coil in it, and that is what it says on the bag it came in

[@bivideo7]

ObiTrev 3=Potentiometer, so yes, it's a potentiometer. If you watched the video recall I mentioned that many times packaging and instructions are labelled wrong. 3=potentiometer, 2=rheostat. You can wire a potentiometer as a rheostat by only using 2 of 3 terminals, but the Ω values are usually too high to be of value.

[@tortrodz]

Enjoyed very much. good work. Later

[@davidcooper3871]

Starts at 6:07.

[@frankkappa7963]

your 14,000th sub :D

[@getbusy21]

yes, yes I said.

[@zheloshuvieraheshadonelkhu1874]

😘😘😘😘

[@deanhenthorn1890]

Talking to a class of third graders.