Monster maze

Electricity and Magnetism Level 4

If the emf of all batteries is 10V and capacitance of all capacitors is 1 μ f \ \mu f then find the charge on C C . (in μ C \ \mu C )


The answer is 30.

Kushal Patankar by Kushal Patankar , 22, India

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3 solutions

Keshav Tiwari
Jun 19, 2015

The trick is to choose a loop which doesn't consist of another capacitor.

5 Helpful 0 Interesting 0 Brilliant 0 Confused

ya man a really lovely q. enjoyed solving it :p

aryan goyat - 4 years, 12 months ago

Thanks for the very well effective trick

Akash aggrawal - 5 years ago
Lu Chee Ket
Dec 14, 2015

Talking about direct current at steady state with zero current, all intermediate capacitors connected are equivalent to open circuit like no connection to the only wanted capacitor labeled C in the diagram.

10 // 10 + 10 + 10 - 10 + 10 +10 +10 - 10 - 10 = 30 V {Traced from right to left.}

Therefore Q Q = C V C V = 1 μ F × 30 V \mu F \times 30 V = 30 μ C \mu C

Answer: 30 \boxed{30}

1 Helpful 1 Interesting 1 Brilliant 0 Confused
Anubhav Tyagi
Jun 18, 2016

I would appreciate u for posting such an easy problem

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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