Question

The energy of a charged capacitor is given by the expression `(q =` charge on the conductor and `C =` its capacity
A. `(q^(2))/(2C)`
B. `(q^(2))/(C )`
C. `2qC`
D. `(q)/(2C^(2))`

Answer 1

Correct Answer - A
`q = CV` and `U = (1)/(2)CV^(2) = (q^(2))/(2C)`