Search Results for: Carbon brushes used for electrical purposes
, resistors are used to reduce current flow, adjust signal levels, to divide voltages , bias active elements, and terminate transmission lines , among other uses. high-power resistors that can dissipate many watts of electrical power as heat, may be used as part of motor controls, in power distribution
systems, or as test loads for generators . fixed resistors have resistances that only change slightly with temperature, time or operating voltage. variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force...
https://en.wikipedia.org/wiki/Resistor
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