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?

68.4 mA
None of these
28.4 mA
24.2 mA
34.4 mA

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Which one of the following statements is true?

None of these
All of these
Power dissipation of a pure capacitor decreases with operating frequency
There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency
Power dissipation of a pure capacitor increases with operating frequency

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
The north pole of a magnet is the one:

that would be attracted to the earth's north magnetic pole
that would be attracted to the earth's south magnetic pole
that has its molecules arranged in a random pattern
None of these
that would be repelled by the south pole of another magnet

ANSWER DOWNLOAD EXAMIANS APP

Electronic Principles
Current is

An imbalance of electrical charges
None of these
The flow of charged particles through a material
The force that causes electrons to flow
The number of free electrons in an atom

ANSWER DOWNLOAD EXAMIANS APP