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

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

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

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

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Electronic Principles
Molecule is

A atom that has an excessive number of electrons in its outer orbit
None of these
The smallest particle of a substance that retains the properties of that substance
A atom that flows whenever there is an imbalance of electrical charges between two points
A atom that has a shortage of electrons in its outer orbit

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