Question

How are capacitors different from batteries (including AA “batteries” and flashlight “batteries”, which are more properly called cells)?

a. As a capacitor discharges, its voltage decreases steadily with use, whereas a battery’s voltage remains fairly constant until it is nearly drained.

b. While being discharged, capacitors maintain a constant current, wheras batteries maintain a constant voltage.

c. The discharge of a capacitor is essentially a physical change, whereas the processes in a battery are fundamentally chemical.

d. all of the above

e. a) and c) only

Answer 1