0
$\begingroup$

I have a homework problem, in which if I assume that the answer to the question in the title is True, then I get a right answer.

I do not have good arguments why it is true though.

How should I think about this?

$\endgroup$
8
  • $\begingroup$ When they are connected , what can you say about the voltage? Work from there. $\endgroup$
    – my2cts
    Oct 19 '19 at 19:26
  • 1
    $\begingroup$ It is two capacitors connected in parallel. $\endgroup$
    – Farcher
    Oct 19 '19 at 20:55
  • $\begingroup$ @my2cts: yes, that's good, I have derived a formula which says they are the same, I do not see it intuitively though, only from the formula $\endgroup$
    – zabop
    Oct 19 '19 at 21:02
  • $\begingroup$ @Farcher: yepp, if I connect two capacitors in parallel, their capacitances add. Why is this a parallel connection though? $\endgroup$
    – zabop
    Oct 19 '19 at 21:02
  • $\begingroup$ or how can I think of it as a parallel circuit? $\endgroup$
    – zabop
    Oct 19 '19 at 21:03
1
$\begingroup$

to see it intuitively just charge both toU against earth the will have a charge of Q1 and Q2 then connect then, they still have U and now together Q1+Q2 . (the capacity of the wire is neglected, otherwise u would diminish a little.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.