Electronic Principles
What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W?

None of these
224 ohm
88.8 ohm
89.3 ohm
77.7 ohm

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

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

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Electronic Principles
A high-pass filter:

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

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

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

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