1.

A \[10\,pF\] capacitor is connected to a 50 V battery. How much electrostatic energy is stored in the capacitor [KCET 1999]

A.            \[1.25\times {{10}^{-8}}\,J\]
B.         \[2.5\times {{10}^{-7}}\,J\]
C.            \[3.5\times {{10}^{-5}}\,J\]
D.         \[4.5\times {{10}^{-2}}\,J\]
Answer» B.         \[2.5\times {{10}^{-7}}\,J\]


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