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Question: Two charged capacitor have their outer plates fixed and inner plates connected by a spring of force ...

Two charged capacitor have their outer plates fixed and inner plates connected by a spring of force constant k. The charge on each capacitor is q. Find the extension in the spring at equilibrium-

A

q22 Aε0k\frac { \mathrm { q } ^ { 2 } } { 2 \mathrm {~A} \varepsilon _ { 0 } \mathrm { k } }

B

C

D

Zero

Answer

q22 Aε0k\frac { \mathrm { q } ^ { 2 } } { 2 \mathrm {~A} \varepsilon _ { 0 } \mathrm { k } }

Explanation

Solution

F = kx

= kx, x = q22 Aε0k\frac { \mathrm { q } ^ { 2 } } { 2 \mathrm {~A} \varepsilon _ { 0 } \mathrm { k } }