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?

None of these
24.2 mA
68.4 mA
34.4 mA
28.4 mA

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
The peak value of a sine waveform is:

the amplitude at 1.41 times the maximum value
the amplitude at 90% of the maximum value
the maximum positive or negative value
the amplitude at 70.7% of the maximum value
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
Auto batteries are primary wet-cell batteries
Auto batteries are secondary wet-cell batteries
Auto batteries are secondary dry-cell batteries
None of these

ANSWER DOWNLOAD EXAMIANS APP