Engine_2014 : Electricity - 1034/2299
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| In electronic circuits, DC voltages can be positive (+) or negative (-) when measured with respect to a certain physical reference point? What would be an example or examples of such a reference point? I. Analog or digital circuitry 'common' bus or PCB 'common' trace. II. Chassis, console frame, or hull 'ground'. |
| A) I only |
| B) II only |
| C) Both I and II |
| D) Neither I nor II |
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