How do you determine the duration of a waveform using an oscilloscope if the seconds per division is 2 ms and it covers 4 division lines?

To determine the duration of a waveform using an oscilloscope, you can use the scale set for time per division and the number of divisions that the waveform spans. In this scenario, the time scale is set to 2 ms per division, and the waveform covers 4 division lines.

To calculate the total duration of the waveform, you multiply the time per division by the number of divisions covered by the waveform. This is done as follows:

• Time per division = 2 ms

• Number of divisions = 4

Calculating the total duration gives you:

Total duration = Time per division × Number of divisions

Total duration = 2 ms × 4 = 8 ms

This method accurately determines the duration of the waveform as it relates to the settings on the oscilloscope, showing how the time scale directly affects the time representation of the waveform displayed on the screen. Thus, the duration of the waveform is indeed 8 ms.