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Internal resistance

Index Internal resistance

A practical electrical power source which is a linear electric circuit may, according to Thévenin's theorem, be represented as an ideal voltage source in series with an impedance. [1]

18 relations: AA battery, Alternating current, Electric battery, Electric current, Electric power, Electrical impedance, Electrical load, Electrical resistivity and conductivity, Electrochemistry, Electrolyte, Energizer, ESR meter, Linear circuit, Lithium polymer battery, Norton's theorem, Ohm's law, Thévenin's theorem, Voltage source.

AA battery

The AA battery—also called a double A or Mignon (French for "dainty") battery—is a standard size single cell cylindrical dry battery.

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Alternating current

Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.

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Electric battery

An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars.

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Electric current

An electric current is a flow of electric charge.

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Electric power

Electric power is the rate, per unit time, at which electrical energy is transferred by an electric circuit.

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Electrical impedance

Electrical impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied.

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Electrical load

An electrical load is an electrical component or portion of a circuit that consumes (active) electric power.

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Electrical resistivity and conductivity

Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) is a fundamental property that quantifies how strongly a given material opposes the flow of electric current.

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Electrochemistry

Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity considered an outcome of a particular chemical change or vice versa.

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Electrolyte

An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water.

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Energizer

Energizer Holdings is an American manufacturer of batteries, headquartered in Town and Country, Missouri.

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ESR meter

An ESR meter is a two-terminal electronic measuring instrument designed and used primarily to measure the equivalent series resistance (ESR) of real capacitors; usually without the need to disconnect the capacitor from the circuit it is connected to.

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Linear circuit

A linear circuit is an electronic circuit in which, for a sinusoidal input voltage of frequency f, any steady-state output of the circuit (the current through any component, or the voltage between any two points) is also sinusoidal with frequency f. Note that the output need not be in phase with the input.

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Lithium polymer battery

A lithium polymer battery, or more correctly lithium-ion polymer battery (abbreviated as LiPo, LIP, Li-poly, lithium-poly and others), is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid electrolyte.

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Norton's theorem

Known in Europe as the Mayer–Norton theorem, Norton's theorem holds, to illustrate in DC circuit theory terms (see that image).

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Ohm's law

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

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Thévenin's theorem

As originally stated in terms of DC resistive circuits only, Thévenin's theorem holds that: In circuit theory terms, the theorem allows any one-port network to be reduced to a single voltage source and a single impedance.

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Voltage source

A voltage source is a two-terminal device which can maintain a fixed voltage.

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References

[1] https://en.wikipedia.org/wiki/Internal_resistance

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