Electronic Principles
Which one of the following devices is most often used for measuring opposition to current flow in a circuit?

Voltmeter
None of these
Ammeter
Ohmmeter
Wattmeter

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Electronic Principles
A high-pass filter:

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

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

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

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

The impedance is less than the sum of the resistance and capacitive reactance
The impedance is greater than the sum of the resistance and capacitive reactance
The impedance is equal to the sum of the resistance and capacitive reactance
The impedance is greater than either the resistance or capacitive reactance but less than their sum
None of these

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