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Resistors oppose the flow of current in an electric circuit and provide us with a means of controlling the currents and voltages present in electronic circuits. Resistors can also act as loads to simulate the presence of a circuit during testing (e.g., a suitably rated resistor can be used to replace a loudspeaker when an audio amplifier is being tested).

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Page last modified on July 19, 2011, at 11:57 AM