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
24.2 mA
None of these
28.4 mA
34.4 mA

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Electronic Principles
Which one of the following statements is true for the currents in a series RC circuit?

None of these
The total current is equal to the sum of the currents for the resistance and capacitance
The current always has the same amplitude and phase for every part of the circuit
The total current is greater than the sum of the currents for the resistance and capacitance
The total current is less than the sum of the currents for the resistance and capacitance

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Electronic Principles
Voltage is

Trie force that causes electrons to flow
The flow of charged particles through a material
The number of free electrons in an atom
The smallest electrically charged particle
None of these

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Electronic Principles
Molecule is

None of these
A atom that flows whenever there is an imbalance of electrical charges between two points
A atom that has a shortage of electrons in its outer orbit
A atom that has an excessive number of electrons in its outer orbit
The smallest particle of a substance that retains the properties of that substance

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