Re: physical/intuitive understanding of RL/RC time constants?

From: BobGardner (bobgardner_at_aol.comma)
Date: 10/25/04 

Date: 25 Oct 2004 23:20:28 GMT

>when a current just starts flowing into a RL or RC circuit, how does
>the voltage "know" that it should be increasing exactly 63% during
>each time-constant period?
==================
The cap starts out discharged, so a lot of current flows at first, then less
and less and less as the voltage and charge builds up on the cap. Plot it...
charging toward 12 volts ... starts at 0, then half way to 12 would be 6, then
half way to 12 would be 9, then half way to 12 would be 10.5, then half way to
12 would be..... hey... it might not ever get there!

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