Electronic Principles
An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current?

28.4 mA
None of these
68.4 mA
24.2 mA
34.4 mA

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements most accurately applies to the frequency of a waveform?

The actual frequency of a sine waveform is 1.41 times the working frequency
The higher the amplitude of a waveform, the higher its frequency
The longer the period of a waveform, the lower its frequency
Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements applies to common auto batteries?

Auto batteries are primary dry-cell batteries
None of these
Auto batteries are primary wet-cell batteries
Auto batteries are secondary wet-cell batteries
Auto batteries are secondary dry-cell batteries

ANSWER DOWNLOAD EXAMIANS APP