Electrostatics> spherical capacitors...

in 1 of the question of h c vermanumbered61:"A spherical capacitor is made of two conducting spherical shells of radii 'a' and 'b'. the space between the shells is filled with a dielectric of dielectric constant 'k' upto a radius 'c'. calculate the capacitance?"i hav refered al possible solutions of h c verma and also askd as many colleagues and teachers as possible but i couldnt understand why we take the two capacitors in parallel thought i feel it must b taken in series so as to get answery do we take in parallel plz answer

babu babu , 14 Years ago

Grade 12

1 Answers

Badiuddin askIITians.ismu Expert

Last Activity: 14 Years ago

Dear babu

here in this case we will consider capacitor cac and cbc in series

Cac =4πεack/(c-a)

Cbc =4πεac/(c-b)

so 1/C = 1/Cac + 1/Cbc

put the value this will give desired result.

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