Electronic Principles
What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm

None of these
45 degree
75 degree
180 degree
30 degree

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Electronic Principles
Which one of the following statements is true?

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

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

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

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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
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
None of these

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