Chapter 21, Problem 44P

* The alternating current through a $2.0-\mu \text{F}$ capacitor is given by $I_{\text{C}}=(0.04\text{ A) sin (2}\pi \text{400}t)$. Determine (a) the rms voltage across the capacitor and (b) the shortest time interval between the peak of the voltage across the capacitor and the peak of the current through the capacitor. (c) How will the answers to questions (a) and (b) change if the capacitance is doubled? Explain.