Electronic Principles
A farad is defined as the amount of capacitance necessary for:

storing 1 V for 1 second
dissipating 1 W of power
None of these
causing an ac phase shift greater than 90 degree
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing

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Electronic Principles
A low-pass filter:

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

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

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