# how to measure current from the capasitor

Discussion in 'Electrical Engineering' started by Joja, Dec 15, 2006.

1. ### JojaGuest

How can i measure current ( with multimetar ) of 35V capasitor with 100uF
capasity ?
Should i connect resitor and how ?

2. ### JojaGuest

Terry, you have helped me very much! Thank you ! Sorry for long replay time.
****************************************
This is the redefined question, an the problem:
Im making some small test project where i want to control the discharge of
fully charged capasitor ( this is the end part ).

For start i need to understand this situation:
Let's take stronger capasitor : 6000 uF at 18V

- Capasitor will be charged thru 2x9V battery.
- battery is common eu 9V battery (varta) and it is non rechargeable.

1.) When i connect capasitor to battery and when capasitor is full he should
have 18V

Question:
1.) How much current is on this capasitor ?
2.) If i would use some different DC input ( 18V ~ 2mA ) to charge
capasitor, how much current will be then, on this capasitor ?

Basicly, i want to find out how to calculate current on the capasitor when
you have constant defined voltage input (with low or very low current).

3. ### JojaGuest

First you need to understand better how to use the word 'current'.

I agree. I have used this term from the last post.
But you know what im asking and why

4. ### JojaGuest

Hi !
Thank you (and Terry ) for your time and help.

Joja

p.s. sorry for my typing errors.

5. ### JojaGuest

Happy Christmas to you too and to all your family and friends !