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

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
Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet

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Electronic Principles
Which one of the following statements is true?

All of these
There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency
Power dissipation of a pure capacitor decreases with operating frequency
Power dissipation of a pure capacitor increases with operating frequency
None of these

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Electronic Principles
Which one of the following statements applies to common, non-rechargeable flashlight batteries?

None of these
Common flashlight batteries are secondary dry-cell batteries
Common flashlight batteries are secondary wet-cell batteries
Common flashlight batteries are primary wet-cell batteries
Common flashlight batteries are primary dry-cell batteries

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