I've got question about RC circuit. What is notceable about the time(charge/discharge) in comparison with voltage measured? Thanks in advance.

 

It's exponential.

 

Euler's number pops up yet again: Vc=Vb(1-e^(t/RC))

 

It is positively transcendental.

 

Many thanks for reply. but can u explain a bit more.....

 

Many thanks for reply. but can u explain a bit more.....

The equation given by thingmaker3 above explains it all. Also see the Wiki on this: http://en.wikipedia.org/wiki/RC_circuit#Time_domain_considerations

Dave