Electronic Principles
What kind of battery is most likely included in a cordless electric knife?

None of these
Nicad battery
Zinc-carbon battery
Lead-acid battery
Mercury-cell battery

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Electronic Principles
Molecule is

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

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

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

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