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A CRO screen has ten divisions on the horizontal scale. If a voltage signal 5 sin (314t + 45°) is examined with a line base setting of 5 msec/div, the number of cycle of signal displayed on the screen will be
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- 0.5 cycle
- 2.5 cycles
- 5 cycles
- 10 cycles
Correct Option: B
Lines base setting = 5 msec/div
| Input frequency = | = 200 Hz | |
| 5 × 10-3 |
Frequency input signal = 314 = Ω = 2πƒ
| or ƒ = | = 50 Hz | |
| 2π |
| Number of cycles at signal displayed = | × 10 = 2.5 | |
| 200 |
