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...current '''I''' is flowing through a resistor '''R''', and experiencing a voltage drop '''V''', the power consumption can be expressed as '''I²R'' Calculating the power of AC circuits is more complex because both the voltage and the current are a function of time.

...between two points is directly proportional to the potential difference or voltage across the two points, and inversely proportional to the resistance between

...simplified circuit consisting of a voltage source, called the '''Thévenin voltage source''', in series with an impedance, called the '''Thévenin impedance'' ...em is shown in the figure: the circuit behavior is boiled down to a simple voltage divider.

*[http://hypertextbook.com/facts/2001/AliceLi.shtml Voltage of an Alkaline Battery]

...separated by an insulating ''gate oxide'' from a semiconductor ''body''. A voltage on the gate modulates the conductivity of a surface ''channel'' in the body

...tries. All UK light rail systems built since the Tyne and Wear have used a voltage of 750V DC.

...high voltage side) will oppose the [[electric field]] associated with the voltage difference. Thus, the ''polarization of the dielectric'' reduces the [[elec

*{{cite book |title=Current Sources and Voltage References: A Design Reference for Electronics Engineers|author=Linden T. H

{{r|Voltage||**}}

...houses and factories. Additional transformers reduce this to a much lower voltage (120 [[volt]]s in North America and 240 volts in Europe) for safety, eventu ...nsformers, so alternating currents can be carried long distances with high voltage and low power loss, which is why AC won out over DC.

...f the cell. A working '''Shaker channel''' is [[Voltage-gated ion channel|voltage dependent]] and has four subunits which form a pore through which ions flow

#Limiting the sustained firing of neurons, by promoting the inactive state of voltage-gated sodium channels #Limiting action of a specific voltage-gated calcium channel

...ayer) from a semiconductor layer (connected to the body contact). The gate voltage switches "on" and "off" the electrical connection between a source and drai

'''Voltage, electromotive force, or electric potential difference''' is the difference Voltage is related to [[electric current|current]] and [[resistance]] in an electri

...nt an ideal [[amplifier]], having infinite [[electric current|current]], [[voltage]], [[transconductance]] and [[transimpedance]] gain.<ref name=Verhoeven/> I == Example: voltage-controlled current sink ==

...an electric current (denoted by ''I'') flowing through a conductor and the voltage difference ''V'' between the ends of the conductor causing the current, ...r, a [[semiconductor]] [[diode]] is not, as its resistance varies with the voltage applied.

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...) from a semiconductor layer (connected to the ''body'' contact). The gate voltage switches "on" and "off" the electrical connection between a ''source'' and

...nonperiodic pulse, such as zero voltage to convey a zero bit and a nonzero voltage to convey a nonzero bit. The pulses are then used to amplitude, frequency,

{{r|Voltage}}