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... is a measuring instrument for measuring the voltage between two points in an electric circuit ... angular rotation becomes proportional to the applied voltage. A voltmeter may also be realized using ... end terminal of the potentiometer. The unknown voltage source may be connected to a current ... the potentiometer's wiper, while the known voltage source is connected to an end terminal ... in our circuit. Now replace the unknown voltage supply with the known voltage supply ...
http://en.wikipedia.org/wiki/Voltmeter - 10k - Cached - Similar pages

Operational amplifier (Engineering wiki)
... −) and one non-inverting (+). The output voltage is the difference between the + and − ... designed to perform mathematical operations by using voltage as an analogue of another quantity. This ... it is limited by the amount of voltage applied to power the operational amplifier, i ... two inputs and one output. The output voltage is a multiple of the difference between ... inverting input, after being scaled by a voltage divider K = R 1 / (R 1 + ...
http://engineering.wikia.com/wiki/Operational_amplifier - 40k - Cached - Similar pages

RL circuit
... series or in parallel, driven by a voltage source. Introduction There are three basic, analogue ... a special case in which the input voltage consists of a pure sinusoid (with no ... circuit By viewing the circuit as a voltage divider, we see that the voltage across the inductor is: V_L( ...
http://en.wikipedia.org/wiki/RL_circuit - 22k - Cached - Similar pages

RC circuit
... series or in parallel, driven by a voltage source. Introduction There are three basic, analog ... a special case in which the input voltage consists of a pure sinusoid (with no ... circuit By viewing the circuit as a voltage divider, we see that the voltage across the capacitor is: V_C( ...
http://en.wikipedia.org/wiki/RC_circuit - 21k - Cached - Similar pages

Circuit breaker
... to large switchgear intended to protect high voltage circuits feeding an entire city. Circuit breakers ... breakers are built into switchgear cabinets. High-voltage breakers may be free-standing outdoor equipment ... a gas-insulated switchgear line-up. Low voltage European circuit breaker Photograph of the internal ... of the device after assembly. Solenoid Arc divider / extinguisher Common trip breakers When supplying a ... commercial and light industrial applications for low voltage (less than 1000 V) use. MCB ( ...
http://en.wikipedia.org/wiki/Circuit_breaker - 39k - Cached - Similar pages

Marx generator   (translated from German)
Marx generator This article treats the high voltage-technical meaning of Marx generator In the ... inspection purposes and attempts in that High voltage technology needed. 1.) fundamental function mode High voltage-technical operational funds must withstand the overvoltages ... thunderbolts in the energy net (lightning impulse voltage or outside overvoltage) and such, by implementing switching actions in the high-voltage transmission system arise (internal overvoltages). Ignite ...
http://de.wikipedia.org/wiki/Marx-Generator - 15k - Cached (German) - Wikipedia (German) - Similar pages

... piece of electronic test equipment that allows voltage levels and signals to be viewed by ... periodic signals. The vertical axis usually shows voltage. Features and uses Example usage The classic ... will misbehave because of design errors, bad voltage levels, electrical noise etc. Digital electronics usually ... in seconds per division. If the input voltage departs from zero, the trace is deflected ... The resulting trace is a graph of voltage against time (the present plotted at ...
http://en.wikipedia.org/wiki/Oscilloscope - 58k - Cached - Similar pages

... that they use. These include the perfect voltage source, the perfect current source, the perfect ... To take one example, consider the perfect voltage source. If a perfect voltage source existed, it would have no internal ... and would continue to maintain its rated voltage, say 5 V dc, across any load ... rather than abandon the idea of the 'voltage source' we simply remember that the ...
http://en.wikipedia.org/wiki/Negligible - 15k - Cached - Similar pages

DC to DC converter
... a source of Direct Current from one voltage to another. It is a class of ... contain several subcircuits which each require unique voltage levels different than supplied by the battery ... sometimes higher or lower than the battery voltage, or even negative voltage). Additionally, the battery voltage declines as its stored power is ...
http://en.wikipedia.org/wiki/DC_to_DC_converter - 8k - Cached - Similar pages

... resists the flow of current, producing a voltage drop between its terminals in accordance with ... The electrical resistance is equal to the voltage drop across the resistor divided by the ... resistor is used to create a known voltage-to-current ratio in an electric circuit ... network of two or more resistors (a voltage divider) used to reduce the voltage of ...
http://en.wikipedia.org/wiki/Resistor - 31k - Cached - Similar pages

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