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Author Topic: Question cap  (Read 4760 times)

PiCéd

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Question cap
« on: April 04, 2014, 02:00:52 PM »
Juste une petite question, si un condensateur de 2 farads a la même quantité d'énergie que un condensateur de 200, aura t-il effectuer moins de travail pendant deux seconde sous 1 ohm que celui à 200 farads sous 1 ohm pendant 200 secondes ?
Exemple:
énergie totale 1 joule pour le 2 farads:
1*1*2/2
énergie totale 1 joule pour le 200 farads:
0.1*0.1*200/2
On met le premier dans un circuit de 1 ohm, 2 secondes plus tard il n'a plus que 0.33 joule, ensuite on met le second dans le même circuit, 200 secondes plus tard il ne fait plus que 0.33 joule lui aussi, par contre y a t-il eu plus de travail avec le 200 farads que le 2 farads ?
t=R*C
Elle me turlupine sans arrêt cette question. Si quelqu'un a la réponse à ma question je le remercie d'avance.
Bon, il y a moins de voltage pour le 200 farads mais ce moins est compensé par le fait qu'il y ait une intensité 100 fois plus grande si je ne m'abuse.

English translation:
Just a small question, if a capacitor has 2 farads and the same amount of energy than a capacitor of 200 farads, will the one do less work during two seconds in 1 ohm than the 200 farads in 1 ohm for 200 seconds?
example:
total energy 1 joule for 2 farads:
1 * 1 * 2/2
total energy 1 joule for 200 farads:
0.1 * 0.1 * 200/2
The first is placed in a circuit of 1 ohm, 2 seconds later it has only 0.33 joule, then put the second in the same circuit, 200 seconds later he is no more than 0.33 joule too, by cons currently he had more work with the 200 farads as 2 farads?
t=R*C
This question always bothers me, so if somebody has the answer to my question,thank in advance.
Well, there is less voltage to 200 farads but less is offset by the fact that there is an intensity 100 times greater if I'm not mistaken.