A flash unit for a camera has a capacitance of 1035 µF. What resistance is needed in this RC circuit if the flash is to charge to 85% of its full charge in22.5 s?
k?
A 11-V battery is connected to three capacitors in series. The capacitors have the following capacitances: 3.6 µF, 11.1 µF, and 32.5 µF. Find the voltage across the 32.5-µF capacitor.
V