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

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

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

An electron has a negative charge and a proton has no charge
An electron has a negative charge and a proton has a positive charge
None of these
An electron has a positive charge and a proton has a negative charge
An electron has a positive charge and a proton has no charge

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