1.

A parallel plate capacitor has plate area A and separation d. It is charged to a potential difference V0. The charging battery is disconnected and the plates are pulled apart to three times the initial separation. The work required to separate the plates is       [Kerala PET 2002]

A.   \[\frac{3{{\varepsilon }_{0}}AV_{0}^{2}}{d}\]
B. \[\frac{{{\varepsilon }_{0}}AV_{0}^{2}}{2d}\]
C.   \[\frac{{{\varepsilon }_{0}}AV_{0}^{2}}{3d}\]  
D.   \[\frac{{{\varepsilon }_{0}}AV_{0}^{2}}{d}\]
Answer» E.


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