Electronic Principles
What is one important thing transistors do?

None of these
Regulate voltage
Amplify weak signals
Emit light
Rectify line voltage

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

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

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Electronic Principles
Which one of the following statements best applies to a parallel RLC circuit?

The voltage waveform for each component always has the same amplitude and phase as the applied voltage
The sum of the current is always less than the applied current
The current waveform for each component always has the same amplitude and phase as the applied current
All of these
None of these

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