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Ability of a body to store an electrical charge
related notions of capacitance: self-capacitance and mutual capacitance. An object that can be electrically charged exhibits self-capacitance, for which the
Capacitance
Differential capacitance in physics, electronics, and electrochemistry is a measure of the voltage-dependent capacitance of a nonlinear capacitor, such
Differential_capacitance
Input and output device
the screen, Stumpe and Beck developed a self-capacitance touchscreen in 1972, and a mutual capacitance touchscreen in 1977 that could sense the finger
Touchscreen
Usually unwanted capacitance in a circuit
Parasitic capacitance or stray capacitance is the unavoidable and usually unwanted capacitance that exists between the parts of an electronic component
Parasitic_capacitance
Electronic component
called a cap. The utility of a capacitor depends on its capacitance. While some capacitance exists between any two electrical conductors in proximity
Capacitor
Effect in electronics
increase in the equivalent input capacitance of an inverting voltage amplifier due to amplification of the effect of capacitance between the amplifier's input
Miller_effect
Manufacturing styles of an electronic device
value of capacitance, but adjustable capacitors are frequently used in tuned circuits. Different types are used depending on required capacitance, working
Capacitor_types
Type of diode
variable capacitance diode, variable reactance diode or tuning diode is a type of diode designed to exploit the voltage-dependent capacitance of a reverse-biased
Varicap
A capacitance sensor or dielectric sensor uses capacitance to measure the dielectric permittivity of a surrounding medium. The configuration is like the
Capacitance_probe
Topics referred to by the same term
Capacitance hat may refer to: Capacitance hat, horizontal wires at the top of a 'T'-antenna or umbrella antenna Capacitance hat, a network of rounded
Capacitance_hat
High-capacity electrochemical capacitor
also called an ultracapacitor, is a high-capacity capacitor, with a capacitance value much higher than solid-state capacitors but with lower voltage
Supercapacitor
Fixed-value capacitor using ceramic
only small capacitance values could be realized. The expanding market of radios in the 1930s and 1940s create a demand for higher capacitance values but
Ceramic_capacitor
Capacitor whose capacitance can be changed
A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors
Variable_capacitor
Type of capacitor
much higher capacitance-voltage (CV) product per unit volume than ceramic capacitors or film capacitors, and so can have large capacitance values. There
Electrolytic_capacitor
Circuit that makes capacitor act like a larger capacitor
A capacitance multiplier is designed to make a capacitor function like a much larger capacitor. This can be achieved in at least two ways. An active circuit
Capacitance_multiplier
Analog video disc playback system
The Capacitance Electronic Disc (CED) is an analog video disc playback system developed by Radio Corporation of America (RCA), in which video and audio
Capacitance_Electronic_Disc
Technology in electrical engineering
In electrical engineering, capacitive sensing (sometimes capacitance sensing) is a technology, based on capacitive coupling, that can detect and measure
Capacitive_sensing
SI unit of electric capacitance
The farad (symbol: F) is the unit of electrical capacitance, the ability of a body to store an electrical charge, in the International System of Units
Farad
Electronic oscillator circuit
resonant circuit with externally connected parallel capacitance. Any small additional capacitance in parallel with the crystal pulls the frequency lower
Crystal_oscillator
Storage of electricity in the human body
Body capacitance is the physical property of a human body to act as a capacitor. Like any other electrically conductive object, a human body can store
Body_capacitance
Technique for characterizing semiconductor materials and devices
Capacitance–voltage profiling (or C–V profiling, sometimes CV profiling) is a technique for characterizing semiconductor materials and devices. The applied
Capacitance–voltage_profiling
Type of electronic test equipment
A capacitance meter is a piece of electronic test equipment used to measure capacitance, mainly of discrete capacitors. Depending on the sophistication
Capacitance_meter
Capacitance present in the interface between a surface and fluid
Double-layer capacitance is the important characteristic of the electrical double layer which appears at the interface between a surface and a fluid (for
Double-layer_capacitance
Capacitance of the gate terminal of a field-effect transistor
gate capacitance is the capacitance of the gate terminal of a field-effect transistor (FET). It can be expressed as the absolute capacitance of the
Gate_capacitance
Electrical switch which is activated by being touched
detect changes in capacitance. When a person touches it, their body increases the capacitance and triggers the switch. Unlike self-capacitance, mutual capacitive
Touch_switch
Type of capacitance
Quantum capacitance, also known as chemical capacitance is defined as the variation of electrical charge q {\displaystyle q} with respect to the variation
Quantum_capacitance
Diffusion Capacitance is the capacitance that happens due to transport of charge carriers between two terminals of a device, for example, the diffusion
Diffusion_capacitance
Type of electrolytic capacitor
itself from other conventional and electrolytic capacitors in having high capacitance per volume (high volumetric efficiency) and lower weight. Tantalum is
Tantalum_capacitor
Electronics component
"stray capacitance". Parallel capacitances add together, and so both the dielectric loss and the stray capacitance loss add up to a net capacitance. Audio
Speaker_wire
Type of capacitor
and also those with widest range of sizes, capacitance and voltage values. They are made with capacitance values from 0.1 μF up to 2,700,000 μF (2.7 F)
Aluminum electrolytic capacitor
Aluminum_electrolytic_capacitor
Term in semiconductor electrochemistry
electrochemistry, a Mott–Schottky plot describes the reciprocal of the square of capacitance ( 1 / C 2 ) {\displaystyle (1/C^{2})} versus the potential difference
Mott–Schottky_plot
Electrical capacitor with an insulating plastic film as the dielectric
percentage of allowed deviation of the capacitance from the rated value is called capacitance tolerance. The actual capacitance value of a capacitor should be
Film_capacitor
Time constant of an RC circuit
circuit), is equal to the product of the circuit resistance and the circuit capacitance: τ = R C . {\displaystyle \tau =RC\,.} It is the time required to charge
RC_time_constant
Scanning capacitance microscopy (SCM) is a variety of scanning probe microscopy in which a narrow probe electrode is positioned in contact or close proximity
Scanning capacitance microscopy
Scanning_capacitance_microscopy
Electrical capacitance tomography (ECT) is a method for determination of the dielectric permittivity distribution in the interior of an object from external
Electrical capacitance tomography
Electrical_capacitance_tomography
Model for magnetic circuits
resistance–reluctance model. The model makes permeance elements analogous to electrical capacitance rather than electrical resistance . Windings are represented as gyrators
Gyrator–capacitor_model
Electric circuit composed of resistors and capacitors
consists of a resistor with resistance R and a charged capacitor with capacitance C connected to one another in a single loop, without an external voltage
RC_circuit
MOSFET that can handle significant power levels
MOSFET datasheets, the capacitances are often named Ciss (input capacitance, drain and source terminal shorted), Coss (output capacitance, gate and source shorted)
Power_MOSFET
Mathematical model of a dendrite
segments with capacitances c m {\displaystyle c_{m}} and resistances r m {\displaystyle r_{m}} combined in parallel (see Fig. 1). The capacitance of a neuronal
Cable_theory
Simplification of a physical system into a network of discrete components
analog of electrical capacitance, although it also includes thermal analogs of electrical resistance as well. The lumped-capacitance model is a common approximation
Lumped-element_model
3D imaging technology
Three-dimensional electrical capacitance tomography (3D ECT) also known as electrical capacitance volume tomography (ECVT) is a non-invasive 3D imaging
Three-dimensional electrical capacitance tomography
Three-dimensional_electrical_capacitance_tomography
Notation to specify resistor and capacitor values
numeral code for resistance and capacitance values and tolerances", "letter and digit code for resistance and capacitance values and tolerances", or informally
RKM_code
Physical property of matter
Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat that must be supplied to an object to produce a unit
Heat_capacity
Electronic test equipment that measures inductance, capacitance, and resistance
type of electronic test equipment used to measure the inductance (L), capacitance (C), and resistance (R) of an electronic component. In the simpler versions
LCR_meter
Unit of length
gauge in the CGS system, the centimetre is used to measure capacitance, where 1 cm of capacitance = 1.113×10−12 farads in maps, centimetres are used to make
Centimetre
Undesired resistance, inductance, or capacitance within electrical components
parasitic impedance is a circuit element (resistance, inductance or capacitance) which is not desirable in an electrical component for its intended purpose
Parasitic_impedance
Early scientific instrument to detect charge
The electroscope is an early scientific instrument used to detect the presence of electric charge on a body. It detects this by the movement of a test
Electroscope
Circuit component which represents double-layer capacitance
of a double layer, that is, an imperfect capacitor (see double-layer capacitance). Constant phase elements are also used in equivalent circuit modeling
Constant_phase_element
Amplifier that converts current to voltage
usually have more capacitance than an opamp can handle. The sensor can be modeled as a current source in parallel with a capacitance C i {\displaystyle
Transimpedance_amplifier
Indian-American scientist and educator
non-equilibrium Green's function method for quantum transport and negative capacitances. Supriyo Datta was born in Dibrugarh, India in 1954. Datta received his
Supriyo_Datta
Evolutionary biology hypothesis
Evolutionary capacitance is the storage and release of variation, just as electrical capacitors store and release charge. Living systems are robust to
Evolutionary_capacitance
Physical law relating heat loss to temperature difference
lumped capacitance model can be solved with a heat transfer coefficient that varies with temperature difference. A body treated as a lumped capacitance object
Newton's_law_of_cooling
Tool for measuring equivalent series resistance of capacitors
Other types of meters used for routine servicing, including normal capacitance meters, cannot be used to measure a capacitor's ESR, although combined
ESR_meter
Opposition to current by inductance or capacitance
is the opposition presented to alternating current by inductance and capacitance. It is measured in ohms. Along with resistance, it is one of two elements
Electrical_reactance
Semiconductor diode based upon the p–n junction
the diode diffusion capacitance, C J {\displaystyle C_{\text{J}}} the diode junction capacitance (the depletion layer capacitance) and r D {\displaystyle
P–n_diode
Type of pointing device
technology used in the 2010s senses the change of capacitance where a finger touches the pad. Capacitance-based touchpads will not sense the tip of a pencil
Touchpad
Transfer of energy between circuits
nodes. Where analysis of many points in a circuit is carried out, the capacitance at each point and between points can be described in a matrix form. In
Capacitive_coupling
Technique for characterizing semiconductor materials
Drive-level capacitance profiling (DLCP) is a type of capacitance–voltage-profiling characterization technique developed specifically for amorphous and
Drive-level capacitance profiling
Drive-level_capacitance_profiling
Type of field-effect transistor
MOSFET may require significant current to charge and discharge its gate capacitance. In an enhancement mode MOSFET, voltage applied to the gate terminal
MOSFET
Measure of the electric polarizability of a dielectric material
electrostatics, the permittivity plays an important role in determining the capacitance of a capacitor. In the simplest case, the electric displacement field
Permittivity
Approximation for practical capacitors and inductors
inductors as used in electric circuits are not ideal components with only capacitance or inductance. However, they can be treated, to a very good degree of
Equivalent_series_resistance
Storage of electricity within an electrochemical cell
static double-layer capacitance. Pseudocapacitance and double-layer capacitance both contribute inseparably to the total capacitance value. The amount of
Pseudocapacitance
Electronic oscillator
minimize parasitics. The total capacitance seen from the crystal looking into the rest of the circuit is called the "load capacitance". When a manufacturer makes
Pierce_oscillator
Inverse of electrical capacitance
Electrical elastance is the reciprocal of capacitance. The SI unit of elastance is the inverse farad (F−1). The concept is not widely used by electrical
Elastance
Measure of the electric polarizability of a dielectric, compared with that of a vacuum
relative to vacuum. Likewise, relative permittivity is the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar
Relative_permittivity
Antique electrical device that stores a high-voltage electric charge
dielectric material was not essential, but increased the storage capability (capacitance) and prevented arcing between the plates. Two plates separated by a small
Leyden_jar
Catalyst surface active in redox reactions
C_{DL}} is the double-layer capacitance. C S {\displaystyle C_{S}} is the specific capacitance which is the capacitance of an ideal flat surface of the
Electrochemical_surface_area
High-voltage capacitor used in photographic flashes
proportional to the product of the capacitance and the voltage squared; photoflash capacitors may have capacitance in the range 80-240 microfarads (μF)
Photoflash_capacitor
Solid conductive electrolyte
capacitance is measured at 1 kHz or higher. The basic unit of a polymer electrolytic capacitor's capacitance is the microfarad (μF). The capacitance value
Polymer_capacitor
Type of sensor
determine aromas in the air by simultaneously measuring resonance and capacitance. Computer controlled electronics vastly increase the range of potential
Piezoelectric_sensor
Conductor–ground plane electrical transmission line
microstrip, the plate capacitance may added to the fringe capacitance for each side of the microstrip line to compute the total capacitance for both the dielectric
Microstrip
Touchscreen interactions using multiple fingers
Hugh Le Caine and Robert Moog experimented with using touch-sensitive capacitance sensors to control the sounds made by their instruments. IBM began building
Multi-touch
As transistors become smaller, their power density remains constant
transistor channel C ox {\displaystyle C_{\text{ox}}} : oxide capacitance – the capacitance per unit area of the gate dielectric layer (the oxide layer)
Dennard_scaling
Electronic component
value. Typical capacitance for consumer-sized (7–20 mm diameter) varistors are in the range of 100–2,500 pF. Smaller, lower-capacitance varistors are available
Varistor
Increase in voltage at a long AC power line
assuming negligible line resistance. Therefore, both line inductance and capacitance are responsible for this phenomenon. This can be analysed by considering
Ferranti_effect
American television sitcom (2007–2019)
Theory. Season 4. Episode 16. February 17, 2011. CBS. "The Maternal Capacitance". The Big Bang Theory. Season 2. Episode 15. February 9, 2009. CBS. "The
The_Big_Bang_Theory
Semiconductor device with variable capacitance
barrier varactor (HBV) is a semiconductor device which shows a variable capacitance with voltage bias, similar to a varactor diode. Unlike a diode, it has
Heterostructure barrier varactor
Heterostructure_barrier_varactor
Molecular interface between a surface and a fluid
voltage applied. This early model predicted a constant differential capacitance independent from the charge density depending on the dielectric constant
Double layer (surface science)
Double_layer_(surface_science)
Types of electrical circuits
The total capacitance of capacitors in series is equal to the reciprocal of the sum of the reciprocals of their individual capacitances: C = ( ∑ i =
Series_and_parallel_circuits
Material with a high permittivity relative to silicon dioxide
dioxide gate dielectric has steadily decreased to increase the gate capacitance (per unit area) and thereby drive current (per device width), raising
High-kappa_dielectric
Season of television series
Greatest Episodes. Christine Baranski submitted the episode "The Maternal Capacitance" for consideration due to her nomination for the Primetime Emmy Award
The_Big_Bang_Theory_season_2
Sup35p is the Saccharomyces cerevisiae (a yeast) eukaryotic translation release factor. More specifically, it is the yeast eukaryotic release factor 3
Sup35p
Tool for studying defects in semiconductors
observes the device space charge region capacitance where the defect charge state recovery causes the capacitance transient. The voltage pulse followed
Deep-level transient spectroscopy
Deep-level_transient_spectroscopy
wire together. The capacitance may be varied by loosening or tightening the winding, making it a variable capacitor. The capacitance can also be reduced
Gimmick_capacitor
reciprocal of capacitance is called elastance. There are two closely related notions of capacitance self-capacitance and mutual capacitance : For an isolated
Performance and modelling of AC transmission
Performance_and_modelling_of_AC_transmission
Device for detecting electricity
contacts only one side of the circuit under test, and relies on stray capacitance and current passing through the user's body to complete the circuit.
Test_light
Electrically insulating substance able to be polarised by an applied electric field
material and thus influences many other phenomena in that medium, from the capacitance of capacitors to the speed of light. It is defined as the constant of
Dielectric
Electronic component
Parasitic capacitance: The nonconducting diode behaves like a capacitor, which can distort and corrupt high-speed signals. Lower capacitance is generally
Transient-voltage-suppression diode
Transient-voltage-suppression_diode
Electronic amplifier circuit type
amplifier tends to be low, due to high capacitance resulting from the Miller effect. The gate-drain capacitance is effectively multiplied by the factor
Common_source
Electrical resonant transformer circuit invented by Nikola Tesla
outside it. The inductance of (L2) resonates with stray capacitance (C2) and the capacitance of the toroid's metal electrode attached to the high-voltage
Tesla_coil
Material whose capacitance changes when a force is applied
A force-sensing capacitor is a material whose capacitance changes when a force, pressure or mechanical stress is applied. They are also known as "force-sensitive
Force-sensing_capacitor
Imaginary part of electrical admittance
Heaviside's collected works, and Heaviside used the term permittance to mean capacitance, not susceptance. The general equation defining admittance is given by
Electrical_susceptance
Ability of a biological organ to distend
Compliance is the ability of a hollow organ (vessel) to distend and increase volume with increasing transmural pressure or the tendency of a hollow organ
Compliance_(physiology)
power (switching power) dissipated by a chip is C·V2·A·f, where C is the capacitance being switched per clock cycle, V is voltage, A is the activity factor
Voltage_and_frequency_scaling
Digital electronic term
However, inputs of real gates have capacitance as well as resistance to the power supply rails. This capacitance will slow the output transition of the
Fan-out
Model of the bipolar junction transistor
resistance Ω 0 19 CJE capacitance B–E zero-bias depletion capacitance F 0 20 VJE capacitance B–E built-in potential V 0.75 21 MJE capacitance B–E junction exponential
Gummel–Poon_model
Type of radio antenna
increase the capacitance at the top of the antenna. More current is required in the vertical wire to charge and discharge this added capacitance during the
T-antenna
Imaging by sections or sectioning using a penetrative wave
PMID 29048060. Huang, S M; Plaskowski, A; Xie, C G; Beck, M S (1988). "Capacitance-based tomographic flow imaging system". Electronics Letters. 24 (7):
Tomography
Type of boundary condition in mathematics
Debye layer i.e. a linear quantum capacitance that appears in series with the ordinary dielectric geometrical capacitance. A single Robin boundary condition
Robin_boundary_condition
Electronic musical instrument
significant body capacitance, and thus can be treated as the grounded plate of a variable capacitor in an L-C (inductance-capacitance) circuit, which is
Theremin
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