Electronic Principles
The total inductance of a series inductor circuit is:

None of these
equal to the sum of the individual inductance values
equal to the source voltage divided by total current
equal to the sum of the individual inductive-reactance values
less than the value of the smallest inductor

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

None of these
An electron has a positive charge and a proton has no charge
An electron has a negative charge and a proton has no charge
An electron has a negative charge and a proton has a positive charge
An electron has a positive charge and a proton has a negative charge

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Electronic Principles
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?

The voltage reverses polarity periodically
The voltage remains at one polarity and at a steady level
None of these
The voltage remains at one polarity but changes value periodically
The voltage causes current to flow in two directions at the same time

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