1.

The function of connecting a zener diode in an UJT circuit, used for the triggering of SCRs, is to

A. expedite the generation of triggering pulses
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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