- #1

Suraj M

Gold Member

- 597

- 39

## Homework Statement

Find capacitance across AB

So i divided the current into q1 and q2 as shown. then i assumed that q₂>q₁.

## Homework Equations

##C=\frac{Q}{V}##

I don't know anything after KVL KCL and loop law.

## The Attempt at a Solution

So i split the current at T into q₃ and q₂-q₃

by the diagram, i used Loop law for UPQTU and QRSTQ.

this gave me a relation between q₁,q₂ and q₃.

i got

$$ q₁= 15q₃$$

$$q₂=16q₃$$

$$q₁ = \frac{15}{16} q₂$$

using these, i used the equation..

$$ C_{AB} = \frac{q₂ +q₁}{\frac{q₁}{5} + \frac{10}{q₁+q₃}}$$

so i got $$C_{AB} = \frac{155}{23} µF$$

Is this right.? because i doubt it.