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प्रश्न
Electrostatic energy of 3·5 x 10-4 J is stored in a capacitor at 700 V. What is the charge on the capacitor?
योग
उत्तर
U = 3.5 × 10-4J, V =700V
U =`1/2` Q V
`Q=(2U)/V`
`=(2xx3.5xx10^(-4))/700`
`Q=10^-6C`
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