- #1

forevermoreOC

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- Thread starter forevermoreOC
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- #1

forevermoreOC

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- #2

whozum

- 2,221

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- #3

forevermoreOC

- 15

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But it starts dimming because of the loss in current, right?

- #4

whozum

- 2,221

- 1

Right, the current drops as the charge is stored on the capacitor.

- #5

forevermoreOC

- 15

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thankyou whozum

- #6

forevermoreOC

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- #7

andrevdh

Homework Helper

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and substituting q/C for V and qo/C for Vo where qo is the initial charge on the capacitor you get an equation of the same form q = qo e^-t/τ. Therefore the charge also decreases exponentially. By differentiating the previous equation w.r.t time (i = dq/dt) you get i = -qo/τ e^-t/τ same with the current! (- implies current decreases with time)

- #8

Dr.Brain

- 538

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BJ

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