Capacitance and Circuit Behavior Quiz

A theoretical measure of a capacitor's ability to store charge without losses.

The amount of energy a capacitor can hold, determined by capacitance and voltage.

A type of capacitor known for high capacitance and energy storage but limited voltage ratings.

A capacitor that uses a polymer film as a dielectric, offering stable capacitance but lower energy storage.

The equation used to calculate capacitance involves charge quantity and voltage across electrodes.

Measure of a capacitor's ability to store electric charge at a given voltage.

Capacitance is measured in Farads (F), where 1 F = 1 As/V.

An ideal capacitor perfectly differentiates voltage or integrates current based on impressed values.

The current in a capacitor leads its voltage by 90 degrees in sinusoidal waveforms.

For periodic signals, the average current through a capacitor is zero.

A graphical representation used to denote a capacitor in circuit diagrams.

Capacitance can be calculated using the equation C = Q/V where Q is charge and V is voltage.

Capacitors are classified based on their construction and application types.

A capacitor consisting of two parallel conductive plates separated by a distance.

C = ε × (A/d) where C is capacitance, A is the area, and d is the distance between plates.

The ability of a vacuum to permit electric field lines, valued at 8.8542 pF/m.

The resistance that appears in series with an ideal capacitor, affecting its performance.

A ratio comparing active and reactive power in a capacitor, indicating efficiency.

The resistance between capacitor electrodes that prevents current leakage.

Distance between the plates in a parallel-plate capacitor, influencing capacitance.

The ratio of power loss to reactive power in capacitors.

Equivalent series capacitance in a capacitor's circuit.

Equivalent series resistance indicating energy loss in capacitors.

Capacitors with constant capacitance, such as film and ceramic types.

Capacitors whose capacitance changes with voltage or frequency.

The function of capacitors to hold electric energy.

Using capacitors to reduce voltage fluctuations in circuits.

Using capacitors to counter reactive power in circuits.

A type of non-polarized capacitor using ceramic as dielectric.

Material qualities that enhance a capacitor's charge storage capacity.

The separation of positive and negative charges in a material under an electric field.

A measure of how a dielectric material responds to an electric field, including its storage and loss of energy.

A measure of energy loss in a dielectric material, represented as tan δ.

A process where free electrons accelerate and generate more free electrons, leading to a current surge.

Breakdown caused by uneven current densities that increase temperature, leading to further current increase.

A breakdown occurring at air inclusions in the dielectric material, where electric fields intensify.

A measure showing water's capacity to permit electric fields, valued at 81.

Materials are rated by their relative permittivity and dissipation factors; ceramics have high values.

The maximum electric field a dielectric can withstand without breakdown, measured in V/μm.

A measure of energy loss in a dielectric material when subjected to an alternating electric field.

A measure of a material's ability to store electrical energy in an electric field, often referred to as dielectric constant.

Ceramic capacitors typically range from 1 pF to 100 μF, depending on their design and application.

Characterized by low permittivity and high stability, suitable for precision applications.

Have higher permittivity and acceptable temperature dependence, with non-linear behavior.

Refers to the gradual change in capacitance and characteristics due to factors like temperature and voltage over time.

Measurements that indicate how the capacitance of a capacitor changes with temperature.

The generation of electrical noise when mechanical pressure is applied to a ceramic capacitor.

A type of ceramic capacitor that consists of multiple layers of dielectric and electrodes, enhancing capacitance without increasing size.

The practice of using a capacitor at a voltage lower than its maximum rated voltage to extend its useful life and reliability.

The intensity of the electric field at a point in space, contributing to how forces are exerted on charges.

The range of temperatures within which a capacitor can operate effectively without damage.

Used in snubber circuits, output capacitors, and DC link applications due to their high current capability.

The maximum AC current a capacitor can handle without overheating or degrading over time.