http://www.allaboutcircuits.com/vol_3/chpt_8/11.html
I'm having difficulty grasping this new concept of capacitance value times voltage per second for total current. I would like to know how this relates to the method of calculating the current using the RC time constant and the universal time constant equation or calculating its peak current using its capacitive reactance in an ac circuit.To put some definite numbers to this formula, if the voltage across a 47 µF capacitor was changing at a linear rate of 3 volts per second, the current "through" the capacitor would be (47 µF)(3 V/s) = 141 µA.