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- Suppose that, at a given instant, a charge dq’ has been transferred from one plate of a capacitor to the other. The increment of work required will be,
- The work required to bring the total capacitor
- charge up to a final value q is
- This work is stored as potential energy U in the capacitor, so that,
- PHY102 Physics II © Dr.Cem Özdoğan
- 25-5 Energy Stored in an Electric Field
- Start out with uncharged capacitor
- Transfer small amount of charge dq from one plate to the other until charge on each plate has magnitude Q
- How much work was needed?