How can I simplify a network of capacitors using a Y-Δ transformation?

[hurz]

I've made some capacitors association exercices and i got stuck on 2 of them.
Q1:

Q2:

How can i get the equivalent capacitance on this 2 capacitors systems?
Ty

 

[kuruman]

Your questions did not get uploaded. Please try again.

 

[hurz]

Your questions did not get uploaded. Please try again.

try what?

 

[kuruman]

try what?

Uploading your questions. I can't see what they are. It might be a good idea to type them in.

 

[hurz]

Uploading your questions. I can't see what they are. It might be a good idea to type them in.

you mean that you can't see the images ?

 

[kuruman]

you mean that you can't see the images ?

Yes. That's what I mean.

 

[hurz]

Yes. That's what I mean.

I can see it here in the topic
Try on these links
http://img01.imagecanon.com/full_view.php?view=28670_c4.jpg
http://img01.imagecanon.com/full_view.php?view=28671_c5.jpg

 

[gneill]

For the first network a Y-Δ transformation for the inner three capacitors will greatly simplify things. Treat the capacitors as impedances and apply the usual Y-Δ transform equations. Realize that for capacitance Z ~ 1/C.