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?

34.4 mA
28.4 mA
68.4 mA
None of these
24.2 mA

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Electronic Principles
Current is

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

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Electronic Principles
When applying a square waveform to a capacitor, the circuit tends to:

peak the current and round off the voltage waveforms
round off both the voltage and current waveforms
peak the voltage and round off the current waveforms
None of these
peak both the voltage and current waveforms

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