A capacitor (originally known as a condenser) is a passive two-terminal electrical component used to store electrical energy temporarily in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors (plates) separated by a dielectric (i.e. an insulator that can store energy by becoming polarized). The conductors can be thin films, foils or sintered beads of metal or conductive electrolyte, etc. The nonconducting dielectric acts to increase the capacitor's charge capacity. Materials commonly used as dielectrics include glass, ceramic, plastic film, air, vacuum, paper, mica, and oxide layers. Capacitors are widely used as parts of electrical circuits in many common electrical devices. Unlike a resistor, an ideal capacitor does not dissipate energy. Instead, a capacitor stores energy in the form of an electrostatic field between its plates.

When there is a potential difference across the conductors (e.g., when a capacitor is attached across a battery), an electric field develops across the dielectric, causing positive charge +Q to collect on one plate and negative charge Q to collect on the other plate. If a battery has been attached to a capacitor for a sufficient amount of time, no current can flow through the capacitor. However, if a time-varying voltage is applied across the leads of the capacitor, a displacement current can flow.

Based on the article and the following list of answers, write a list of questions.

1. a passive two-terminal electrical component used to store electrical energy temporarily in an electric field.
2. a condenser
3. Unlike a resistor, an ideal capacitor does not dissipate energy.
4. It stores energy in the form of an electrostatic field between its plates.
5. at least two
6. a dielectric
7. an insulator that can store energy by becoming polarized
8. thin films, foils or sintered beads of metal or conductive electrolyte, etc.
9. glass, ceramic, plastic film, air, vacuum, paper, mica, or oxide layers, among others.
10. parts of electrical circuits in many common electrical devices.
11. It acts to increase the capacitor's charge capacity.
12. eventually, no current can flow through the capacitor.
13. a time-varying voltage applied across the leads of the capacitor
14. a displacement current can flow.
1. What is a capacitor?
2. Are there any other names for it?
3. What's the difference between it and a resistor?
4. Does it do something else instead?
5. How many plates does a capacitor have?
6. Are they kept apart by something?
7. What's that?
8. What kinds of things can a plate be?
9. What are dielectrics made of?
10. What are capacitors used for?
11. What is the dielectric for?
12. What happens if you attach a battery to a capacitor?
13. Is there a way to avoid that?
14. What happens then?