Electronic Principles
Doubling the number of turns of wire in an inductor:

reduces the value of inductance by one-half
multiplies the value of inductance by four
None of these
multiplies the value of inductance by two
reduces the value of inductance by one-fourth

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

None of these
The total current is equal to the sum of the currents through the resistance and inductance
The total current leads the total voltage by less than 90
The total current is less than the sum of the currents through the resistance and inductance
The current always has the same amplitude and phase for every part of the circuit

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Electronic Principles
A high-pass filter:

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

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Electronic Principles
The total capacitance of a series capacitor circuit is:

equal to the source voltage divided by total current
equal to the sun of the individual capacitive-reactance values
less than the value of the smallest capacitor
equal to the sum of the individual capacitance values
None of these

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