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
None of these
Number of lines of force
Flux density

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

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