SPSS has three different sets of commands for producing graphs. The easiest to learn and use are the oldest legacy graphing commands. They give you graphs with a default visual style (colors used, weight of lines, size of type, etc) that can be customized by hand.
Storing Energy in a Capacitor. The energy stored on a capacitor can be expressed in terms of the work done by the battery. Voltage represents energy per unit charge, so the work to move a charge element dq from the negative plate to the positive plate is equal to V dq, where V is the voltage on the capacitor.
Find out how much charge the capacitor is carrying. Charge is often difficult to measure directly. However, because the unit of current, the ampere, is defined as 1 coulomb per second, if the current is known and the amount of time the current is applied is known, it is possible to figure out the charge. (In other words, 1 coulomb is also 1 ampere-second).