The purpose of the zener diode (ZD) is to
A)aid in fault diagnosis.
B)set the minimum level of voltage that can be detected.
C)protect against electrical noise interference.
D)separate the higher line voltage from the logic circuits.

Question

The purpose of the zener diode (ZD) is to 
A)aid in fault diagnosis. 
B)set the minimum level of voltage that can be detected. 
C)protect against electrical noise interference. 
D)separate the higher line voltage from the logic circuits.

Quizplus · Accepted Answer

The purpose of the zener diode (ZD) is to set the minimum level of voltage that can be detected. When the voltage across the ZD exceeds its breakdown voltage, it conducts and maintains a nearly constant voltage across its terminals, allowing for a consistent minimum voltage level to be detected.

The Purpose of the Zener Diode (ZD) Is to