Electronic Principles
The total inductive reactance of a parallel inductor circuit is:

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

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Electronic Principles
When a series RLC circuit is operating at its resonant frequency:

inductive reactance is greater than the capacitive reactance
the difference between inductive and capacitive reactance is equal to the resistance
inductive reactance is equal to the capacitive reactance
capacitive reactance is greater than the inductive reactance
None of these

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Electronic Principles
A high-pass filter:

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

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Electronic Principles
Which one of the following phrases best describes residual magnetism?

Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The circular magnetic field that surrounds a conductor carrying a current
The amount of magnetic flux that is not confined to the core material of an electromagnet
The force of attraction between the poles of a permanent and temporary magnetic field
None of these

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