Electronic Principles
What is a free electron?

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

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Electronic Principles
Which one of the following statements most accurately describes the nature of inductive reactance?

Inductive reactance is an opposition to current flow in dc circuits
Inductive reactance is a force that tends to overcome the effects of counter emf
Inductive reactance is another term for counter emf
Inductive reactance is an opposition to current flow in ac circuits
None of these

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

Inductive reactance provides the only opposition to current flow
Resistances provide the only opposition to current flow
The ac voltage lags the current by 90 degree
None of these
Combinations of resistance and inductive reactance provide any opposition to current flow

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