Electronic Principles
Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA?

10.17 V
20 V
18.8 V
None of these
0.17 V

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Electronic Principles
A high-pass filter:

passes higher-frequency signals and reduces lower-frequency signals
has no effect on ac signals
passes lower-frequency signals and reduces higher-frequency signals
increases the level of all frequencies by a significant amount
None of these

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