Electronic Principles
What is a free electron?

An electron that has been freed from its parent atom
An electron that has no electrical charge
An electron that has twice the amount of charge of a normal electron
None of these
An electron that costs nothing

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Electronic Principles
The total impedance of a parallel RLC circuit:

None of these
always increases as the applied frequency increases
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

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