Electronic Principles
What kind of battery is most likely included in a cordless electric knife?

None of these
Mercury-cell battery
Lead-acid battery
Zinc-carbon battery
Nicad battery

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Electronic Principles
The peak value of a sine waveform is:

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

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

An electron has a negative charge and a proton has no charge
None of these
An electron has a positive charge and a proton has a negative charge
An electron has a positive charge and a proton has no charge
An electron has a negative charge and a proton has a positive charge

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