Capacitance is the capability of a material object or device to store electric charge. It is measured by the change in charge in response to a difference in electric potential, expressed as the ratio of those quantities. Commonly recognized are two closely related notions of capacitance: self capacitance and mutual capacitance. An object that can be electrically charged exhibits self capacitance, for which the electric potential is measured between the object and ground. Mutual capacitance is measured between two components, and is particularly important in the operations of the capacitor, a device designed for this purpose as an elementary linear electronic component. Capacitance is a function only of the geometry of the design of the capacitor, e.g., the opposing surface area of the plates and the distance between them, and the permittivity of the dielectric material between the plates. For many dielectric materials, the permittivity and thus the capacitance, is independent of the potential difference between the conductors and the total charge on them. The SI unit of capacitance is the farad (symbol: F), named after the English physicist Michael Faraday. A 1 farad capacitor, when charged with 1 coulomb of electrical charge, has a potential difference of 1 volt between its plates. The reciprocal of capacitance is called elastance. (Wikipedia).
Physics - E&M: Ch 39.2 Capacitors & Capacitance Understood (2 of 27) What is Capacitance?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain that the capacitance of a capacitor is the amount of charge a capacitor can hold when a potential difference is placed across the plates that depends on 1) the size of the plate, 2)the separat
From playlist PHYSICS 39.2 CAPACITORS UNDERSTOOD
introduces the concept of capacitance and capacitor, shows how to find the capacitance of an isolated conductor and of a parallel plate capacitor.
From playlist Capacitors
Physics - E&M: Ch 39.2 Capacitors & Capacitance Understood (3 of 27) What is Capacitance?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain that the capacitance depends on the physical dimension and construction of a capacitor. If a capacitor has twice the capacitance, it can hold twice as much charge with the same amount of the v
From playlist PHYSICS 39.2 CAPACITORS UNDERSTOOD
Capacitors (1 of 9) What is a Capacitor, An Explanation
This video explains what a capacitor is, how charge and energy are stored in a capacitor and how to calculate the capacitance of a capacitor.. A capacitor is a passive electronic device that stores electric charge on its plates and electrical energy in its electric field. A capacitor conta
From playlist Capacitors and Capacitance
Capacitors (9 of 9) Graphical Determination of Capacitance
This video describes how to graphically determine the capacitance of a capacitor. First, five data points are collected, each data point consists of the potential difference across the capacitor and the charge on the plates of the capacitor. Next the data points are plotted on a graph of
From playlist Capacitors and Capacitance
Capacitors (6 of 9) Factors Affecting the Capacitance of a Capacitor
This video describes the three factors affecting the capacitance of a capacitor. A capacitor is a passive electronic device that stores electric charge on its plates and electrical energy in its electric field. A capacitor contains at least two electrical conductors such as metal plates th
From playlist Capacitors and Capacitance
Capacitors (4 of 9) Calculating the Capacitance of a Capacitor, An Explanation
Explains how to calculate the capacitance of a capacitor. A capacitor is a passive electronic device that stores electric charge on its plates and electrical energy in its electric field. A capacitor contains at least two electrical conductors such as metal plates that are separated by a
From playlist Capacitors and Capacitance
Capacitors (2 of 9) What is Capacitance? An Explanation
In this video Mr. Swarthout gives a brief overview of capacitance; including the definition, units and abbreviations. The SI unit of capacitance is the farad (F), which is defined as one coulomb per volt (1 C/V). A capacitor is a passive electronic device that stores electric charge on its
From playlist Capacitors and Capacitance
Capacitors (5 of 9) Calculating the Capacitance of a Capacitor, Worked Examples
Goes through two simple examples of how to calculate the capacitance of a capacitor. A capacitor is a passive electronic device that stores electric charge on its plates and electrical energy in its electric field. A capacitor contains at least two electrical conductors such as metal plate
From playlist Capacitors and Capacitance
Voltage Controlled Capacitors - Varactor Diodes
This electronics video tutorial provides a basic introduction into varactor diodes also known as varicaps which can behave as voltage controlled capacitors. The junction capacitance of the diode is inversely related to the reverse voltage applied to it. Varactor diodes are very useful in
From playlist Electronic Circuits
Capacitors (4 of 11) in Combination, Series and Parallel Capacitors
How to determine the voltages, capacitances and charges for a circuit containing two series capacitors that are in parallel with one other capacitor. Capacitors in series will store the same amount of charge on their plates regardless of their capacitance's. This is because the charge sto
From playlist DC Circuits, Capacitors in Series and Parallel
Capacitors (2 of 11) Series Capacitors, Voltage, Charge & Capacitance
How to calculate the voltages, charges and equivalent resistance for capacitors in series. Capacitors in series will store the same amount of charge on their plates regardless of their capacitance's. This is because the charge stored by a plate of any one capacitor must have come from the
From playlist Electricity and Magnetism
MOSFET Gate Capacitance Part 2
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From playlist Electronics I: Semiconductor Physics and Devices
Capacitors (8 of 11) in Series, Calculating Equivalent Capacitance
How to calculate the equivalent capacitance for capacitors in series. Capacitors in series will store the same amount of charge on their plates regardless of their capacitance's. This is because the charge stored by a plate of any one capacitor must have come from the plate of its adjacen
From playlist Electricity and Magnetism
Capacitors - Review for AP Physics C: Electricity and Magnetism
AP Physics C: Electricity and Magnetism review of Capacitors including: demonstrating what capacitors are, defining capacitance, discharging a capacitor, deriving the capacitance of a parallel plate capacitor, defining dielectrics, defining electric permittivity, defining the dielectric co
From playlist AP Physics C: Electricity & Magnetism Review
Capacitors (5 of 11) in Combination, Parallel and Series Capacitors
How to determine the voltages, capacitances and charges for a circuit containing two parallel capacitors that are in series with one other capacitor. Capacitors in series will store the same amount of charge on their plates regardless of their capacitance's. This is because the charge sto
From playlist DC Circuits, Capacitors in Series and Parallel
Capacitors (3 of 9) What is a Farad? An Explanation
Gives a brief over view of what a farad is and how it relates to capacitance. The SI unit of capacitance is the farad (F), which is defined as one coulomb per volt (1 C/V). A capacitor is a passive electronic device that stores electric charge on its plates and electrical energy in its ele
From playlist Capacitors and Capacitance
Capacitors (3 of 11) Parallel Capacitors, Voltage, Charge & Capacitance
How to calculate the voltages, charges and equivalent capacitance for capacitors in parallel Capacitors in series will store the same amount of charge on their plates regardless of their capacitance's. This is because the charge stored by a plate of any one capacitor must have come from t
From playlist Electricity and Magnetism