A capacitor is chared to store an energy `U`. The charging battery is disconnected. An edentical is now connected to the first capacitor in parallel.

Question

A capacitor is chared to store an energy `U`. The charging battery is disconnected. An edentical is now connected to the first capacitor in parallel.

A capacitor is chared to store an energy `U`. The charging battery is disconnected. An edentical is now connected to the first capacitor in parallel. The energy in each capacitor is now.
A. `(U)/(2)`
B. U
C. `(U)/(4)`
D. `3U)/(2)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`V=(C_(1)V_(1)+C_(2)V_(2))/(C_(1)+C_(2)),U=(1)/(2)(C_(1)+C_(2))V^(2)`.

4 views Answered 2023-02-05 15:29