An electronic flashgun has a 1000-µF capacitor that is charged to 100 V.
a. How much energy is stored by the capacitor?
b. What is the charge on the capacitor?
c. When the photographer takes a picture, the flash fires for 1/2000 s. What is the average current through the flashtube?
d. Find the power delivered to the flashtube.
e. After a picture is taken, the capacitor has to be recharged by a power supply that delivers a maximum current of 10 mA. How long will it take to charge the capacitor?