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Which of the following is a passive device?(a) Transistor(b) Rectifier(c) Capacitor(d) Vaccuum TubesThe question was asked in a job interview.This key question is from Capacitance and the Capacitor in portion Capacitance and Capacitors of Basic Electrical Engineering

Answer»

Right CHOICE is (c) CAPACITOR

To EXPLAIN I would say: Capacitor is a passive device as it CONSUMES power rest all generate power so, they are ACTIVE devices.



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