Electronic Principles
A device that converts chemical energy to electrical energy is called a:

None of these
thermocouple
electric device
chemical cell
solar cell

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Electronic Principles
What is the difference between a conductor and an insulator?

None of these
An insulator allows current to flow much easier than a conductor does
The difference between conductors and insulators depends on how they are used
An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
A conductor allows current to flow much easier than an insulator does

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Electronic Principles
The peak value of a sine waveform is:

the amplitude at 1.41 times the maximum value
the amplitude at 90% of the maximum value
the amplitude at 70.7% of the maximum value
the maximum positive or negative value
None of these

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