Find the capacitance

IIT JEE 2015 Questions › Electricity and magnetism questions › Find the capacitance

Each plate has plate area S. Find the capacitance between A and B.

Can anyone convert this to a series parallel combination ? I did by charge distribution and wrote Q=CV for all of them.(that takes at least 10 mins) Can u solve by faster method?

a simpler version of this problem is given in irodov.(3.113)

#Physics #Electricity and magnetism

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5 Answers

·2011-07-03 06:16:55

as per the image we name the plates

now we simplify it as follows by naming the junctions

here C' is the capacitance
C'=S*E/d (read epsilon)

now simplification is easy

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Shubhodip ·2011-07-03 06:35:35

thanks

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rishabh ·2011-07-03 06:53:49

nasiko can u pls solve it using your method ...atleast the labelled diagram with 2-3 steps..please im weak in this

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gaurav agarwal ·2011-07-03 09:08:19

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rishabh ·2011-07-03 09:29:09

@gaurav can't see ur diagram

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Basic Integral Calculus Operators Symbols Matrix Cases

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∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω

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Find the capacitance

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