When should you use a capacitor for amplifier?

Answer 1

capacitors can be used for many thing they are one of the most common electrical components they limit current differently at different frequency the higher the frequency the lower resistance. They can also be used to store voltage or build it up to be released all at once in a larger but than could be achieved other wise.

Answer 2

Capacitors are not amplifiers. You can use capacitors for isolating amplifiers - careful choice of size needs to be made so the frequencies input into the amplifier are not blocked.

Capacitors can also be used for biasing purposes in place of / in conjunction with resistors.

"Should" is a matter of design. Does your design require it? If it's not required, will it provide a benefit in performance? If so is the benefit worth the added cost of another part? If it's required by the design, then you should use it. If not, weigh the benefit with the cost.

Answer 3

A capacitor is a device that can store electric energy for release later. It is used if one requires a sudden burst of electricity for a short time. Batteries for example can provide a current, but they cannot provide a big current (without stacking batteries), so sometimes what you want is a device that can store some of the energy of a battery and release it in an instant.

A good example of a device that contains a capacitor is a photo camera; the flash is commonly powered by a capacitor.

Answer 4

Quite surprizingly, there are only a handful of different devices that in various combinations gives us our amazingly complex electrical and electronic devices. [This is analogous to our alphabet of 26 characters giving us the whole panoply of literature and communication.] One of these devices is the capacitor, which consists of two plates separated by a dielectricmaterial. The dielectric material is an insulator, and the electrical charge is stored as distortions of the molecular lattice of the material. When a charge of electrons is stored, the lattice distorts, and when the charge is reduced, the lattice relaxes towards normal. Thus capacitors are used to temporarily store charge in an electrical circuit. An example would be where a capacitor is used to smooth out the ripples of a DC power supply. Another example is where the capacitor is used to temporarily store the energy of an electronic 'flip flop' - the basis of our digital electronics.

Answer 5

There is insufficient information in the question to properly answer it. Please restate the question.