Electronic Principles
A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding?

None of these
0.4 V
600 V
24 V
4.73

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Electronic Principles
Which one of the following statements applies to common auto batteries?

None of these
Auto batteries are primary dry-cell batteries
Auto batteries are primary wet-cell batteries
Auto batteries are secondary dry-cell batteries
Auto batteries are secondary wet-cell batteries

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Electronic Principles
When applying a square waveform to a capacitor, the circuit tends to:

peak both the voltage and current waveforms
peak the voltage and round off the current waveforms
peak the current and round off the voltage waveforms
round off both the voltage and current waveforms
None of these

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Electronic Principles
Which one of the following principles best describes the basic operation of an electromagnet?

None of these
Like magnetic poles attract, while unlike poles repel
Current is induced in a conductor that is moving through a magnetic field
Like magnetic poles repel, while unlike poles attract
Current flowing through a conductor generates a magnetic field

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