Capacitance

BITSAT 2015 Guidance › Electricity and magnetism questions › Capacitance

Calculate EQ capcitance . please solve

#Physics #Electricity and magnetism #Electrostatics

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5 Answers

535

Aditya Agarwal ·2014-04-21 11:45:03

I followed this method:
Let AB be connected to a 1 V battery.
then I distributed charge on all the capacitors, and wrote the KVL for (1) upper circuit, (2)lower circuit,
(3) and for 1,5,6 uF capacitors.

Now solving them I got the total charge to be 264/123=88/41=2.14 uC
which is the equivalent capacitance.

Are you sure about the answer?

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Niraj kumar Jha I think it would be much easier if we apply delta-star transformation.
Upvote·0· Reply ·2014-04-21 18:22:22
Aditya Agarwal I used star-delta the first time(149/79). I think the formula for resistance and capacitance is different. If you have solved using star-delta, can you please post the solution?
Upvote·0· Reply ·2014-04-21 22:10:58
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1161

Akash Anand ·2014-04-21 23:57:22

Here is that formula you people were looking for.

If you want to use the Y-Delta transformation for capacitors then just replace R by 1/C and you will get the corresponding result.

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535

Aditya Agarwal ·2014-04-18 08:31:45

Is the answer 14979Î¼F?

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283

Sahil Jain ·2014-04-19 05:17:35

2.25 uf

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535

Aditya Agarwal ·2014-04-22 06:49:49

Thank You, sir. :D

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Your Answer

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