What is the behavior of subatomic particles when there is a voltage but no current? I fully understand that if there is no load there will be no current since there is no path for the circuit to close. When we use a phase tester and insert it into the phase receptacle of the electrical outlet, it turns on showing that there is electric potential at that specific point. What do you think that happens with the electrons? are the charges inside the atom polarized or charged with potential energy waiting for a path to flow? I hope you can get my point.

If we apply an AC voltage with no load, there is no current in the secondary winding, but there will still be a small current flowing through the primary winding. This small AC current creates the magnetic field in the core, which then creates the AC voltage on the secondary winding. The issue is that the mathematical model for an ideal transformer does not describe what a real transformer is doing.

@@EugeneKhutoryansky Thank you for your answer. However I undestand that part you just explained to me. I would appreciate so much if you could please answer this question I will ask you, so far nobody knows the answer. What is the behavior of subatomic particles when there is a voltage but no current? I fully understand that if there is no load there will be no current since there is no path for the circuit to close. When we use a phase tester and insert it into the phase receptacle of the electrical outlet, it turns on showing that there is electric potential at that specific point. What do you think that happens with the electrons? are the particles inside the atom polarized or charged with potential energy waiting for a path to flow? I am taking about electric potencial at one point. I hope you can get my point.

Even if there is "no load", the two wires with an open circuit will act like a capacitor with a very small capacitance. Therefore, this capacitance will keep charging and discharging. So there actually is a very tiny current flowing to charge and discharge this capacitance. And when the capacitance is charged, one of the wires will have slightly more electrons and the other wire will have slightly less electrons.

Ok!

+TheRomichou, thanks for the compliment.

schools wouldn't appreciate such good stuff. let them rot

Electronic are Very important now a days. But the school won't encourage. But the animation is Very understandable, Keep doing about more things

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+John Kerley, thanks.

Yes, a good video. Did I miss the part that talks about why a transformer is not a Dead Short on the line (counter EMF)?

@@EugeneKhutoryansky how did you make that animation? I have a few ideas to make some useful educational material but don't know how to do it ?

@@EugeneKhutoryansky what do you use to animate them?

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0:50 But direction of current in secondary coil should opposite to direction of current in primary coil please clear this.

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This is so true!

+Corranhorn122 One of the best comment ive seen in years lol

Corranhorn122 so fucking true

You have great videos. you're doing a service to the world. Thank you.

+Physics Videos by Eugene Khutoryansky Thank you for making all these videos, these are the best visualization I have seen about electricity! For many people who have difficulty visualizing the dynamics of many of the properties in motion, this is the best yet!

+Samiul Islam, This is discussed at the end of the video, where a light bulb is powered through a transmission line with step up transformer and then a step down transformer. The voltage across the light bulb is proportional to the current. But, the current through the high voltage transmission line is less than the current through the light bulb, thanks to the transformers.

+Samiul Islam, yes ohms law applies, but it is the voltage "difference" between two points that counts. A transmission line is at high voltage only in the sense that there is a large difference in voltage between the different lines. However, there is a small voltage difference between a point on a transmission line and another point on the exact same line.

Physics Videos by Eugene Khutoryansky

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How did it went

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+Saranya Rajagopal, glad you liked my animations, and that the video was helpful. Thanks.

Amazing how it shows the analogy of transformers to gears as well. It looks just like the current on both sides is connected like rotating shafts are connected by a chain drive or timing belt. You can see that there is a ratio of current, analogous to a ratio of rotation rates in gears. It would look like rotating gears, if he reversed the handedness of the secondary coil, to the current rotates in opposite directions.

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@@EugeneKhutoryansky You're welcome! A brilliant way to end my day. ;)

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it deppends of the direction of the coil

If the windings both share the same axis around the core, and are wound with the same handedness, the waveform will be the same. Use opposite handedness in the same location, and the waveform will be inverted. If by contrast, the windings are on opposite sides of a rectangular closed loop core like they are in this annimation, then opposite handedness of coils means same waveform while same handedness of coils means opposite waveform. This example shows opposite sides of a rectangular closed loop core, and opposite handedness of coils.

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@@EugeneKhutoryansky Why then some people say that until you do not plug a equipment into the outlet you wont have any current flowing. ? I can see in the video that for the magnetic field to exist it is necesary to have a current passing through the wire, and for there to be voltage current needs to flow, hence how come can u meassure voltage at home between hot wire and a neutral if it si not supposed to have a current ? I am confused

+Lorenzo Tomasello, thanks. Glad you liked it.

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