GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
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 | |