What is the primary function of a capacitor?

The primary function of a capacitor is to store electric charge and energy in the form of electric potential energy.

Capacitors consist of two conductors separated by ___ which prevents the flow of direct current.

An insulating medium

True or False: A capacitor can have a net charge greater than zero when fully charged.

False. The net charge on the capacitor as a whole is always zero.

In the charging process of a capacitor, one conductor gains a charge of ___ while the other gains a charge of ___.

Q; -Q

What are two common applications of capacitors in electronics?

Capacitors are used for filtering out unwanted frequency signals and forming resonant circuits.

A capacitor is represented in a circuit by which symbol?

A capacitor is represented by the symbol: [insert capacitor symbol image].

The unit of capacitance is ___ and its dimensional formula is ___ .

The unit of capacitance is farad and its dimensional formula is [M⁻¹L⁻²I²T⁴].

1 Farad is defined as the capacitance for which ___ charge increases potential by ___ volt.

1 Farad is defined as the capacitance for which 1 coulomb charge increases potential by 1 volt.

True or False: Supercapacitors can store up to 2 kilofarads of energy.

True.

Capacitors are commonly used in ___, ___, and ___ as energy storage devices.

Capacitors are commonly used in audio equipment, camera flashes, and power supplies as energy storage devices.

Short Answer: Describe one application of supercapacitors.

Supercapacitors are used in applications such as electric cars and regenerative braking systems.

Fill in the blank: The ability of a capacitor to store energy is known as ___.

Capacitance.

1 µF is equal to ___ farads.

1 µF is equal to 10⁻⁶ F.

True or False: The capacitance of a capacitor is measured in coulombs.

False. The capacitance of a capacitor is measured in farads.

Capacitors allow only ___ signals to pass when charged, blocking ___ signals.

AC; DC

What is the primary role of capacitors in conditioning power supplies?

They separate or decouple different parts of electrical circuits to reduce noise and improve efficiency.

Capacitors can measure humidity by detecting changes in ___ and ___ within the capacitor.

The distance between the parallel plates; the material between them

True or False: The capacitance of a capacitor increases with greater spacing between its plates.

False; capacitance is inversely proportional to the distance between the plates.

What effect does a dielectric material with greater permittivity have on capacitance?

It increases the capacitance by allowing more field flux.

In terms of charge and potential, for an isolated conductor, the relationship can be summarized as V ∝ q. What does V represent?

The potential of the conductor.

Which application of capacitors is utilized in Dynamic Random Access Memory (DRAM) devices?

Representing binary information as bits.

Capacitors are often used in conjunction with inductors in what type of circuits?

Tuned circuits for particular frequencies.

True or False: The capacitance of a conductor increases when a neutral conductor is placed near it.

True

Fill in the blank: The capacitance of an isolated spherical conductor in vacuum is given by C = ___.

4πε₀R