Electronic Principles
The total impedance of a parallel RLC circuit:

None of these
is maximum at the resonant frequency
is equal to the sum of the values of resistance, inductive reactance and capacitive reactance
always decreases as the applied frequency increases
always increases as the applied frequency increases

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

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Electronic Principles
Which one of the following statements is true for current flowing in a series circuit?

The same current flows through every part of a series circuit
The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it
None of these
The total current in a series circuit is equal to the total voltage multiplied by the total resistance
The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit

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Electronic Principles
A low-pass filter:

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

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