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Falstad a beginners question

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Hello all,  I have just found Falstad and have a couple of questions to ask please.

I connected an led to a 50 volt battery with a 100 ohm resistor. The led still lights. Shouldn't it burn out (diagramatically of course) or is it that the programme doesn't have this facility? Perhaps my sums are wrong, I am a beginner after all.

How do I have a two way (double) switch on this programme?  I would like to experiment with a capacitor and a lamp.

Thanks in advance everyone.






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  • 4 months later...

I suspect many did not see your thread all those months ago.

I confess I did not.

I hope you are now ell again.

Are you still interested in discussing that circuit or circuitry in general ?

On 9/28/2020 at 4:44 PM, wotsallthis said:

I would like to experiment with a capacitor and a lamp.

Before using a circuit simulator I would recommend finding out a little about circuit elements or components.

By experiment with, did you mean witha actual components or on a simulator ?

Edited by studiot
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Thank you Kartazian and Studiot. I'm very well thanks for asking.

You have obviously "tumbled" me as a beginner and I will enjoy going through this.

I may well come back to you.

Keep well


As a begginner, I know the symbols for amps, voltage, resistance, power and a tiny bit more.

Could I trouble you Kartazian to explain the symbols in your diagram please?

Ua, Vf and 1f,



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