Electronic Principles
Which one of the following phrases most accurately describes a purely capacitive circuit?

Resistances provide the only opposition to current flow
Combinations of resistance and capacitive reactance provide any opposition to current flow
None of these
The ac voltage leads the current by 90 degree
Capacitive reactance provides the only opposition to current flow

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Electronic Principles
What is a free electron?

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

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