- #1

- 192

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If i have a capacitor rated x micro-Farads. And i know that it is charged to a certain voltage.

And it's being discharged by a current. How would i find the time it takes to completly discharge the capacitor?

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- Thread starter James889
- Start date

- #1

- 192

- 1

If i have a capacitor rated x micro-Farads. And i know that it is charged to a certain voltage.

And it's being discharged by a current. How would i find the time it takes to completly discharge the capacitor?

- #2

- 887

- 98

google: capacitor rc

- #3

- 192

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okay so it's an exponential decay type of function?

I suspect this is really easy. I have that the capacitor is rated at 1014[tex]\mu[/tex] farads

and that it is charged to 179V, and is being discharged at a constant rate of 163[tex]\mu[/tex]A

I suspect this is really easy. I have that the capacitor is rated at 1014[tex]\mu[/tex] farads

and that it is charged to 179V, and is being discharged at a constant rate of 163[tex]\mu[/tex]A

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- #4

berkeman

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okay so it's an exponential decay type of function?

I suspect this is really easy. I have that the capacitor is rated at 1014[tex]\mu[/tex] farads

and that it is charged to 179V, and is being discharged at a constant rate of 163[tex]\mu[/tex]A

If you are discharging with a constant current, the voltage decay is not exponential, it is linear.

How exactly is this capacitor being discharged? How did it get to 179V in the first place?

- #5

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Hmm, sorry. I just discovered i posted in the wrong forums.

Forgive me...

Forgive me...

- #6

berkeman

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Hmm, sorry. I just discovered i posted in the wrong forums.

Forgive me...

No worries. Do you want me to move the thread to the Homework Help forums?

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