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Four parallel large plates separated by equal distance d are arranged as shown. The area of the plate is S . Find the potential difference between the plates B and C if the plate B is given charge Q .

Options

  1. AQ d 3 ε 0 S
  2. B2 Q d 3 ε 0 S
  3. CQ d ε 0 S
  4. D2 Q d ε 0 S

Correct answer

A. Q d 3 ε 0 S

Step-by-step solution

Treat parallel plates as capacitor and then make potential difference zero from A to D by assuming some charge on each plate . ∴ P o t e n t i a l   d i f f e r e n c e   Q 3 C   =   Q d 3 ε 0 S

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