| Q.89 | Which of the following statements is NOT correct about different type of waveforms? | |
| Ans | 1. The current or voltage for unidirectional waveforms or signals remains the same,although varying. It never crosses the zero line. | |
| 2. Bidirectional waveforms have both positive and negative signs. | ||
| 3. The periodic time for a square wave is still the time for a complete cycle. | ||
| 4. Non periodic waveforms are those that vary and repeat the waveform. |
Correct Ans: 4
