Electronic Principles
Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field?

Into this page
Counterclockwise
Clockwise
Out of this page
None of these

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Electronic Principles
The total inductive reactance of a parallel inductor circuit is:

less than the inductance value of the smallest inductor
equal to the sum of the individual inductance values
equal to the sum of the individual inductive-reactance values
equal to the source voltage divided by total current
None of these

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Electronic Principles
Which one of the following statements best describes magnetic hysteresis?

None of these
Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet
Hysteresis is most apparent when the core material is saturated
Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet
Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently

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