The purpose of connecting a Zener diode in a UJT circuit, used for tri – McqOptions

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1.	The purpose of connecting a Zener diode in a UJT circuit, used for triggering thyristors, is to
A.	expedite the generation of triggering pulse
B.	delay the generation of triggering pulses
C.	provide a constant voltage to UJT to prevent erratic firing
D.	provide a variable voltage to UJT as the source voltage changes
Answer» D. provide a variable voltage to UJT as the source voltage changes

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