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Electronic Principles - Section 2 :: Discussion
| 5. | Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? | |
| A. | The voltage remains at one polarity and at a steady level | |
| B. | The voltage remains at one polarity but changes value periodically | |
| C. | The voltage causes current to flow in two directions at the same time | |
| D. | The voltage reverses polarity periodically | |
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