What is AC Vs. DC Electricity?

Here we discuss the difference between AC (alternating current) and DC (direct current) electricity.

[@soakexp6955]

You're amazing teacher, i wish you all the best.

[@MathAndScience]

Thank you! You too!

[@dylanwhite6539]

Another thing I like to point out is why we use AC for homes instead of DC. When we were building electrical grids, it was much simpler and easier to manipulate the voltage of AC than DC. A basic transformer is just two Coils of wire with different numbers of wrapping to change voltage up or down, so can run the main lines at thousands of volts up until you’re at the home where it steps down to 240v. The reason we need to do that is because higher voltages can carry power more efficiently. So generators can be further from homes.

[@johnthegreat97]

Hey bro, what are you doing watching this video? You already done got all this down lol.

[@shayanrob839]

That was a really clear explanation bro thanks

[@danielocheme7249]

An amazing explanation, thank you sir

[@xaimeglez74]

Love your videos!!!!’ I’ve learned more from you than any other professor, thank you so much!!!!!!’

[@tenzinchokdup3466]

Wow great video, I learned something new. 👍

[@MathAndScience]

Glad it was helpful!

[@noahautumn7611]

rational explanation

[@cam5816]

Great teacher. The first person to explain this to me where it actually clicked and I immediately understood. The way it had been described to me in the past made me have a totally different idea of how an alternating current actually functions. This is much more natural and now everything makes sense! Thank you!!

[@sagarbhagure1730]

Very nicely explained why AC.... understood concept after 16 years when saw this video ❤

[@CristianHernandez-px9uz]

Very helpful

[@celeste2095]

i love all your contents pls never delete it 💓

[@tinymocot]

Thank you a clear explanation and demonstration

[@ANUKukoya]

Thankyou very much ❤

[@Sc19869]

What an amazing explanation. Than you sir.

[@MathAndScience]

You are most welcome

[@danceworld7026]

You are just awesome period

[@Loghat-wa-Fonoun]

Great

[@FreeShaima]

Thank you!!

[@nickharrison3748]

the usefulness of AC current was, it was able to Step Up or Step down Voltages using transformers and transmitted from Generating stations to various parts of city and then Step down and supplied to a house or a locality.

[@hanifshah59]

You are a great man. Love from Pakistan 😍❤

[@johnbyrne6631]

Best maths science teacher on the Web

[@genesisgamer444]

Thank you sir 😊 love from india❤

[@erica304]

설명해주셔서 감사합니다

[@GIFT_AG]

Love this

[@cjbartoz]

Can you please answer these 3 questions (thanks in advance): - What were and are the ramifications of Lorentz's symmetrization of the Heaviside equations in 1892, and the continuing symmetrization of these equations today as the "electrical engineering model"? - What powers an electrical circuit, or what actually powers the electrical power grid? - There is the "source charge problem" or "the problem of the association of the fields and potentials and their energy, with their source charges". The charge sits there and pours out observable EM energy in 3-space in all directions, with absolutely no observable EM energy input. Piece of cake to prove that experimentally, anytime, anywhere so it's well-known. Either this "most difficult problem in classical and quantum electrodynamics" must be solved, or else one has totally destroyed the conservation of energy law itself. This is a recognized formidable problem, but very much "swept under the rug" and never discussed in "polite circles". So the question is: how does the energy gets input to a source charge or a source dipole in the first place?

[@pinkypiku9251]

wow i got it thank you you explain so easy

[@Jay-de7pn]

After 24 years in school I finally grab the concept of dc and AC..

[@harkaacharya8157]

Thank you.

[@eldenrivas7842]

To be noted: the big or tall towers you see in our elevtric grid is DC, and the smaller wooden poles in our streets and backyards are AC. The reason being DC can carry high voltage more efficiently in long distances. It can carry big blocks of energy without power loss.

[@MaverickSeventySeven]

Terrific explanation!!! Nothing to do with some people being AC/DC.......? :-)?

[@alanhurdle3949]

Jason excellent video it gave a visual, it hard to leave suggestions as you see a large audience next video build something from your blue bin start with good old Guss and make a small flash light something people can walk around proud and they will say see what I made. You you see the vision. As for me I a little messed up hard to explain but my goals is to build a university like yours different approach but same tactics. You are amazing I don't even know how many people you helped. Thanks

[@munyuconeliusgodblessupyou176]

Ever you are perfect for me, am a Ugandan 🤝🤝🤝

[@jayytee8062]

i would have liked to see you actually use a small generator(or prop) to show the peaks in relation to the rotation.

[@lusandasithole5704]

what puzzles me is, since the AC is alternating how do the electrons move forward?

[@user-ke8ys6eq4y]

But if current stays at same place moving back and forth why we get electricity bill

[@noobaccount7580]

Why do battery runs out its electricity when the current just lopping the battery?

[@BoredT-Rex]

Yes I have been asking this same question

[@nathank.9639]

😐

[@jaydottt_transitfanner]

​@@noobaccount7580even though it's a loop, we don't see the other things happening. Energy cannot always be contained, it always wants to travel somewhere else. Have you ever been charging your phone and the adapter heats up? That's because energy is being lost as heat, which is what happens to batteries. Also, the chemical reaction used inside batteries to create electricity can't be "turned off", so that's why batteries lose charge even when they're not being used.

[@noobaccount7580]

@@jaydottt_transitfanner yeah, i just want to tell this guy that to create current flows it needs energy (you must have the magnet moving to create current). That's why you have electricity bills. I'm currently studying EE by the way.

[@the_infinity_snake]

How to create 1-direction-electricity, sir? 😃😃

[@user-mr5xn2uk6s]

Why do you need the current to alternate

[@widojay2048]

Dc sounds better. I would think constant voltage has better uses, but am I wrong. To be clear I don’t know very much about electronics

[@sacramentemo]

What is it about the nature of generating dc power that makes it only flow one way?

[@ramzeneger]

Why make only 1 videos like this, you are a genius!

[@tabletopa4548]

What would determine how the electricity alternates?

[@vanpenguin22]

But HOW does the rotational motion alternate the current. They all tiptoe quickly and quietly away from answering this, i suspect, because they can't

[@mr.technician2638]

Why we need to know the frequency on an ac circuit before we work on it? Example for an industrial tech.

[@arslonbeknaimjonov8035]

❤❤❤❤❤❤❤❤

[@user-ey6xv3gz1w]

WHAT MAKES THE BATTRY LOST CHARGE.IF THE CURRENT IS ALTERNATING?

[@xiongly435]

You are epic

[@benedictwilton6102]

Why’s it 60 times per second only in the United States specifically tho?? 🤔🤔

[@user-co1je4rj3k]

All hail to ac currents founder nicola tesla❤❤ true chad

[@andrewjustin256]

For the first time, I am able to comprehend this particular topic! Thanks!! Just one question, why do we need alternating current? We can just use DC?

[@lilsusboi8986]

Great question, the reason why we dont just use DC is because DC is hard on telephone cables, and can cause them to overheat and burn easily, therefore, DC is inefficient as far as traveling to our houses goes. AC is much easier on power lines, and therefore can travel much easier to our houses and appliances. DC is still used today for most curcuits, as it doesn’t need to travel through telephone cables when powering a circuit, as the AC going into your house is transformed into DC to power your breadboard circuit.

[@DrDeuteron]

Transformers. and I don't mean Robot in Da Skies.

[@andrewjustin256]

What makes DC rough, scruffy and hard on telephone cables while AC is swift and agile?

[@michaellemmen]

What I still don’t understand is what the point of AC is, though. I understand how it works mechanically. (I am very new to this)

[@ricardomilos1784]

AC is more suitable for long-distance power transmission. It can easily be transformed into higher or lower voltages using transformers, which reduces energy loss in transmission lines. DC, on the other hand, isn't as easy to transform, so it's not as efficient for long distance power distribution.

[@michaellemmen]

gotcha... thanks! @@ricardomilos1784

[@techspark001]

Link to full video

[@thatomofolo452]

🙋👍👍

[@xiongly435]

You’re like one of the best teacher I have seen teaching about this topic lol

[@user-iu8nc9jh1d]

*N.Tesla vs TAE*

[@gerryfegan3608]

Is their a benefit to AC over DC sir?

[@laserdiode]

Ac is easier to convert to higher voltages with transformers and transmission lines use high voltage because it reduces losses

[@damensutherland7081]

If nuetral is grounded in ac wouldn't it be dc at 30 hz

[@The1200r]

What about a D.C. generator like in an old car? That is rotating and it makes D.C. current. I just don't get it I tell you.

[@Resma10s]

Did he say ONE DIRECTION 😭😭😭

[@Sutiman-sensei]

hmmmmmmm

[@Salmontemaki]

But why?

[@tapaiferenc577]

Ja bhat DC houmani impulzus hawe?

[@anshenlv6548]

The teachers have one thing in common ,that's is the hair is getting less and less .Lol （I am a teacher too ）

[@user-ob2zz2zk2x]

great...may God guide you to Islam

[@samvelk.3687]

Thanks. But what are the advantages of AC, so we use it instead of DC? I mean is it cheaper or something? And whether it is, why?

[@Minidroit]

AC current works with transformers as the alternating magnetic field produced by flowing charges (changing current) can induce a current in other wires (Faraday’s law). Because the equation for power loss in transmission lines is P=(I^2)R, and R is constant, we use transformers to reduce the amount of current in the wires by increasing the voltage between the points (P=VI). In short, we use AC in houses and transmission lines as it’s compatible with transformers (which aid in the reduction of power loss through heat in wires)

[@user-mr5xn2uk6s]

Why do you need the current to alternate

[@user-mr5xn2uk6s]

Why do you need the current to alternate