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Rotational potentiometers use ___________(a) capacitance(b) self inductance(c) mutual inductance(d) resistanceI had been asked this question during an interview for a job.I would like to ask this question from Transducer Selection Factors topic in chapter Transducers of Electrical Measurements

Answer»

Right choice is (d) RESISTANCE

Easiest explanation: ROTATIONAL potentiometers or translational potentiometers make USE of the change in resistance as a RESULT of the change in length of a CONDUCTOR.



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