What Is Current?

This electronics video tutorial answers the question what is current? It explains the concept of electric current by means of electric charge, time, voltage, and resistance. It explains how to calculate the current in a series circuit containing 3 resistors as well as resistors in a parallel circuit. It covers the concept of Kirchoff's current laws and the current divider circuit.

Basic Electronics For Beginners:

The Electric Battery:

Voltage, Current, & Resistance:

What Is Voltage?

The Electron Volt:

_________________________________
What Is Electric Potential Difference?

What Is Current?

What Is an Amp?

Volts, Watts, & Amps:

Battery Capacity:

__________________________________
Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[ch_ki]

Whenever I'm studying for something, I always look for your videos first. Just a few hours ago, I was looking for your video on what exactly currents are. Truly a grade saver haha! ♡

[roshlove]

Going back to basic when you graduated 2 decades ago can be pain in the ass. But I found your voice soothing and very clear, it made me focus to what you were saying and learned back the things that I already forgot. Thank you. You are awesome.

[G.O.A.T]

Your are the teacher I am looking for
Praise the Lord I found you

Thank u teacher for electrical playlist

[thelonious-dxvi]

TOCT, you are an exceedingly gifted young man. Just sayin'. Thanks for what you do. And please note that I refer to you as "young" only because I am old.

[ak]

Thank you so much for uploading this, I really need it. I have an exam coming up this Monday about this topic. Thanks again.

[GilbertAppleby]

13:50 I think the way the question is posed, the answer should be 36A leaving the node. I_2 and I_3 are shown as negative leaving the node, therefore they are really entering the node and 12+8+16=36A

[arjunsinha]

What is current?

Me:- The rate of flow of charge is known as current.

[matthewm]

Thanks for making your calculus videos

[GoogleAccount-uifx]

This video's are more helpfull for mee keep doing more vidoes

[-uw]

What tools does he use to make these types of videos ?

[steadyeddy]

I WAS ALWAYS UNDER THE IMPRESSION THAT VOLTAGE IS THE POTENTIAL DIFFERENCE THAT AN ELECTRON EXPERIENCES, ( its " height of fall" if you will) WHILE CURRENT REPRESENTS QUANTITY OR VOLUME OF FLOW.
EXAMPLE FROM THE VISIBLE GRAVITATIONAL WORLD IS AS FOLLOWS.
THE VOLUME OF WATER FLOWING THROUGH A CHANNEL ( ie. river bed) WOULD DETERMINE THE RATE OF FLOW ( ie. amperage)
( note how larger cables are required for larger loads when using higher amperage tools, for example. The thicker cable being akin to a wider and or deeper river bed conducting greater flow.
VOLTAGE, ON THE OTHER HAND, IS AKIN TO THE DISTANCE THAT EACH ( call it, " quantum of water ") FALLS UNDER THE INFLUENCE OF GRAVITY.
THE GREATER THE FALL, THE GREATER THE POTENTIAL DIFFERENCE. ie. VOLTAGE
EXAMPLE,
SMALL VOLUMES OF WATER CAN BE PUT UNDER HIGH PRESSURE, AND THEN BE USED TO BLAST OFF 30 YEARS OF DIRT AND GRIME ON A CONCRETE SURFACE. ( this is a condition of low volume, but high pressure. ie". high voltage, low amperage ".)
NOW CONSIDER A HUGE FLOOD RAVISHING THE LANDSCAPE. THE SPEED OF THE WATER ( ie. its "voltage" is low .perhaps it moves at 20 km./hr.) HOWEVER, ITS VOLUME ( ie. " amperage " is enormous) SINCE IT CAN EASILY LIFT A HOUSE OFF OF ITS FOOTINGS AND CARRY IT AWAY.
SO YOU CAN SEE HOW HOW VOLTAGE OR PRESSURE IS DUE TO THE POTENTIAL DIFFERENCE, AND HOW AMPERAGE IS A FUNCTION OF VOLUME, OR THE FLOW RATE OF EACH QUANTUM OF ACTION, IF YOU WILL.
TO CONCLUDE, THEY ARE QUITE INDEPENDENT OF EACH OTHER, AND AREN'T DIRECTLY RELATED AS YOU SEEM TO SUGGEST.
What we end up with is a GRAVITATIONAL analog to electromagnetic circuit
The river bed is the channel or " wire" conducting current flow, quite literally, l would add. THE DAMN IS THE RESISTOR, which can be used to control FLOW RATE, on the one hand, and increase the POTENTIAL DIFFERENCE, on the other.
INTERESTING IDEAS TO BE SURE, AND INDISPENSABLE FOR AN ATTEMPT AT UNITING GRAVITY AND ELECTROMAGNITISM IN THE UNIFIED FIELD THEORY.
" HAVE A NICE DAY "

[jonathaneidering]

Is it really the electrons flowing? Is it not the push-force between them?

[juanodonnell]

If energy flows through the path of less resistance, why is it that in a parallel circuit we do not take the lowest resistance path (R1 in your example) as the only possible variable to calculate current, ie. why is it shared with the other paths/resistances?

[juanodonnell]

Why is it that in resistors in series the current I is the same across the many resistors as per your statement, when I guess that "each" resistor lowers the current as it passes through them, ie. at the end the current will be the result of the formula, but the first resistor should have only lowered it so much?

[sameerrai]

Sir, Why did you divide 1 by charge of electron while calculating 1Amps in 3:30

[gurmann]

what is programm name you are using to draw these circuits?

[sameerrai]

15:30 what if there are more than 2 resistors in parallel. Then what will be the formula now?

[siddharthzote]

I am having doubt at 9:07 why we take 1/r1+1/r2+1/r3 why not r1+r2+r3

[pedrigavi]

how to calculate if the circuit is series

[jamiehuynguyen]

Someone can help me answer "why we have the formula in 15:30 "