Electronic Principles
A basic capacitor is composed of:

two coils separated by a conductor
two coils separated by a dielectric
None of these
two conductors separated by a dielectric
two dielectrics separated by a conductor

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

Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet
None of these
Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently
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

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