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

solar cell
None of these
photodiode
nicad cell
piezoelectric device

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Electronic Principles
The rms value of a sine waveform is:

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

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