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

piezoelectric device
None of these
nicad cell
photodiode
solar cell

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Electronic Principles
Which one of the following statements applies to common, non-rechargeable flashlight batteries?

Common flashlight batteries are secondary dry-cell batteries
Common flashlight batteries are primary dry-cell batteries
None of these
Common flashlight batteries are secondary wet-cell batteries
Common flashlight batteries are primary wet-cell batteries

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Electronic Principles
The rms value of a sine waveform is:

the number of cycles completed in one second
equal to 0.707 times the peak amplitude
the time required to complete one full cycle
None of these
equal to 1.41 times the peak amplitude

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