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COMEDK · Physics · 18. Capacitance

A capacitor of \(2 \mu \mathrm{~F}\) is charged as shown in the figure. When the switch \(S\) is turned to position 2 , the percentage of its stored energy dissipated is


  1. A \(40 \%\)
  2. B \(60 \%\)
  3. C \(80 \%\)
  4. D \(90 \%\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(80 \%\)

Step-by-step Solution

Detailed explanation

Consider the given figure, When the switch \(S\) is connected to point 1, then initial energy stored in the capacitor can be given as \(=\frac{1}{2}(2 \mu \mathrm{~F}) \times V^2\) When the switch \(S\) is connected to point 2, energy dissipated on connection across…