The Romer-Lewin ring with capacitors (part 2)

Поділитися
Вставка
  • Опубліковано 22 сер 2024
  • Accessory considerations to my previous video about the Romer-Lewin ring with capacitors.
    1. It would be better not to use electrolytic capacitors, since these devices do not like to be reverse polarized. But that is what I had available at the moment. If you choose to do this experiment yourself, I advise you to use another type of capacitor.
    2. Experimental results agree with computed values. The shape of the measuring loops - the probes - is completely irrelevant.
    The next video will be about the Romer-Lewin ring with... inductors. It should not be hard to guess what will come after that.

КОМЕНТАРІ • 4

  • @woodcoast5026
    @woodcoast5026 2 роки тому

    What is the resistance of the path along the connections to and from the oscilloscope and through your oscilloscope.

    • @copernicofelinis
      @copernicofelinis  2 роки тому

      Input resistance of the scope is 1 meg; probes and copper interconnects in the ring have negligible resistance. Scope measurements confirm what I have measured earlier (not shown in the video) with my multimeter (10meg minimum input impedance).
      Even the ESR of these cheap caps (which is usually a few ohms) is not playing a part in this circuit. (The ring with inductors is another thing...)

    • @woodcoast5026
      @woodcoast5026 2 роки тому

      @@copernicofelinis
      I have made this circuit with resistors.
      Are the grounds for the channels you are using on your scope for this demonstration electrically connected together by the manufacturer at the scope .

    • @copernicofelinis
      @copernicofelinis  2 роки тому

      @@woodcoast5026 yes, of course. It does not affect the measurements, as can be inferred from the fact that I get the same values when I measure the voltage with a voltmeter (which is floating).