Rakesh wrote on Feb 5th, 2011, 2:36pm:I think there is some misunderstanding.. Jus see this..
Voltage across battery will be iR +1/c integral(i dt). and that we need to integrate over time . So i think u il get loss term in resistor if we include it.
Answer should not change in watever way we do.
When u give a ramp the volage across the cap will not be derivative of ramp due to resistor. we need to solve some first order differential equation..
is this ok with you
The equations you are starting with is ok for me since you include the resistor. If you solving the differential system, please not forget that the voltage ramp is flatting out which influence the current.
You claiming that the answer will not change. I do not understand which answer will not change? And you can not say anything about the answer unless you have sokved the differential system and have an expression of i(t) and the integrate v(t)*i(t).