Recent content by shenjie

Hi all, I was taught that internal energy of an ideal gas in depending on the temperature which mean during isothermal process, the change in internal energy is equal to zero. Is this statement true? How about the change in the internal energy of a substance when it is condensed from...

Then does it have any relationship to the charge flow?? it is actually an ode question. i have obtain a q(t) equation in the first part, q = charge. The question ask to obtain steady state current from q(t)

Hi all, can i know is it true that charge flow is equal to zero at steady state current? Or is the rate of charge flow equal to zero. Thanks :)

Thanks a lot. I finally have a vision on this topic :)

Hi all, Thanks for response :) I Dont really understand what is surface integrals ?? and its difference with Surface Area using double integrals. Can anyone help ? thanks a lot...