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

nicad cell
piezoelectric device
photodiode
solar cell
None of these

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Electronic Principles
The rms value of a sine waveform is:

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

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