# What is the Charge on the Capacitor? - Physics

Sum

Electrostatic energy of 3·5 x 10-4 J is stored in a capacitor at 700 V. What is the charge on the capacitor?

#### Solution

U = 3.5 × 10-4J, V =700V

U =1/2 Q V

Q=(2U)/V

=(2xx3.5xx10^(-4))/700

Q=10^-6C

Concept: Energy of Charged Condenser
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