Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit?

Reluctance
Magnetomotive force
Number of lines of force
None of these
Flux density

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Electronic Principles
Which one of the following statements applies to common auto batteries?

Auto batteries are primary wet-cell batteries
Auto batteries are secondary dry-cell batteries
None of these
Auto batteries are secondary wet-cell batteries
Auto batteries are primary dry-cell batteries

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

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