It's a theoretical question only, so the starting voltage is zero, and the
resistances are zero.



-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Roy
Sent: Sunday, January 29, 2012 4:15 PM
To: 'Microcontroller discussion list - Public.'
Subject: RE: Calculus question

Refer to this site http://www.electronics-tutorials.ws/rc/rc_1.html

Also need to know what voltage you are starting with and any resistance to
use RC time constant calculation.

Roy

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
jim
Sent: Monday, 30 January 2012 11:03 a.m.
To: piclist@mit.edu
Subject: Calculus question

I have a question.  Can anyone (or more than one), give me their answer to
this question...

If there is a current of 10ma charging a 1uF capacitor, what is the voltage
across the capacitor at 100ms?

I have calculated my answer twice, and come up with the same answer twice.
But it just doesn't seem right to me.
So, I thought I'd get an independent, impartial answer to verify or deny my
answer.

If you choose, put your solution to the answer down too, so I can follow
your thinking.  I am not in school, and this is not a homework question.  I
am just curious.  It's actually a problem in an electronics book, and I
wanted to answer it, but I don't think my answer is correct, and the answer
isn't in the book.

Thanks and Regards,

Jim

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