The beauty of LC Oscillations!


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The beauty of LC Oscillations!



If you connect a charged capacitor across an inductor, you will see a beautiful energy exchange take place between the two elements. These energy oscillations look as if the capacitor is saying: ‘you take the energy’ and the inductor then says: ‘no, you take my energy’. Why don’t any of these elements store the energy and become settled? Let’s have a look at the interesting physics behind these oscillations, and some of the applications.

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42 Comments

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  1. My first observation: a "charge difference" between capacitor and resistor cannot exist because a resistor cannot hold a charge. All it can do is convert energy into heat and that implies it can have current flowing through it and voltage across its terminals. The relationship between the L & C values and the frequency of oscillation is not explained in the video.

  2. If electricity is 'pushed' through a circuit, residual magnetism would remain. If your resistor is a light bulb and you turn off a switch, the electricity after the switch is thrown would remain in the wire to the bulb. It doesn't. You can insulate 100 % from heat if electromagnetism is strong enough. I believe static electricity from lightning could be used to start a device that could utilize electromaglev bearings (negligible friction) and create usable electricity.
    Forget perpetual motion, we can't do it, but we can make a usable artificial charged particle on an usable scale. Charged particles and photons travel thousands of light years. We can match that.

  3. I think it’s not correct that all electrons will flow from one site of C to the other side. They will flow until the potential is equal, so that on both sites will be the same number of Electrons…

  4. So, does it means not only it’s impossible to create more energy from less energy it is even impossible to maintain or contain energy within a “system”? The law of physics that energy cannot be created but only changes from one form to another still applies? (My last physics class was more than 30 years ago).

  5. It took me years and even graduated from electrical engineering, and by watching this video in just minutes I fully understand the RLC circuits.

  6. why does oscillations do not happen in RC circuit? When the opposite plate of the capacitor is charged after one half cycle? pls if anyone know the answer , tell on reply

  7. Very nice video, short and to the point. The graphics and animation are adding a lot to the explanation. Only one little objection: a thyristor is a semiconductor device that has nothing to do with LC circuits (other than the possibility of both being present in some applications).

  8. Very nice ,Im trying to make this technology into a suit, a gravity suit I call it, the human circuitry is the hardest part, ? Very hard we are only using 10 of our Brains, Brain's can connect
    To the Earths atmospheres

  9. Eliminating resistance helps to keep the circuit isolating. Three points in the later diagram can be improved. First at the coil replacement on both ends, the current needs to have no sharp turns, creases or bends in it. Or the current slows down there to make those turns to the path of least resistance. Large smooth curves into & out of the coil helps to keep the current speed high at those points. Then the coil magnetic field being regenerated helps to amp up & add speed to the current. Then the capacitor can be laid flat instead of up or down, to help keep the current speed higher at the station point of regeneration. Another coil placed after the capacitor can help to draw out high current accumulations coming into the capacitor. Then help propel to the main coil reramping of current. Coil sizes can vary appending on how much speed or resistance is needed to maintain the wanted amount of current regularity.