A device that can be used to form a pulse generating circuit called a relaxation oscillator is
A) a UJT.
B) an SCR.
C) a silicon controlled switch.
D) a diaC.

Question

Quizplus · Accepted Answer

A UJT (unijunction transistor) is a device that can be used to form a relaxation oscillator, which produces a series of pulses with a regular interval between them. The UJT is well-suited for this application because it has a negative resistance region in its characteristic curve, which allows it to switch rapidly between its high and low states. This switching action, in turn, generates the output waveform of the oscillator. The other options (SCR, silicon controlled switch, diaC) are not typically used in relaxation oscillator circuits.

A Device That Can Be Used to Form a Pulse