Electronic Principles
Doubling the number of turns of wire in an inductor:

reduces the value of inductance by one-half
multiplies the value of inductance by four
None of these
reduces the value of inductance by one-fourth
multiplies the value of inductance by two

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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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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 increases with operating frequency
None of these
Power dissipation of a pure capacitor decreases with operating frequency

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