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Question: The energy of a charged capacitor is given by the expression (\(q\)= charge on the conductor and C ...

The energy of a charged capacitor is given by the expression

(qq= charge on the conductor and C = its capacity)

A

q22C\frac { q ^ { 2 } } { 2 C }

B

q2C\frac { q ^ { 2 } } { C }

C

2qC2 q C

D

q2C2\frac { q } { 2 C ^ { 2 } }

Answer

q22C\frac { q ^ { 2 } } { 2 C }

Explanation

Solution

q=CVq = C V and U=12CV2=q22CU = \frac { 1 } { 2 } C V ^ { 2 } = \frac { q ^ { 2 } } { 2 C }