MCQ
A parallel plate capacitor carries a charge $q$. The distance between the plates is doubled by application of a force. The work done by the force is
  • A
    Zero
  • B
    $\frac{{{q^2}}}{C}$
  • $\frac{{{q^2}}}{{2C}}$
  • D
    $\frac{{{q^2}}}{{4C}}$

Answer

Correct option: C.
$\frac{{{q^2}}}{{2C}}$
c
(c) Work done appears in the form of energy which is given by $\frac{{{q^2}}}{{2C}}$

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