ECNG1012 : Engineering Science and Technology (Semester I- 2024/2025)

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X-Y operating mode is used to plot the Channel 2 signal on the Y axis and the Channel 1 signal on  the X axis. This mode is independent of the time and plots CH2 voltage with respect to CH1 voltage. To activate X-Y mode on the 2121 oscilloscope, which three actions must be performed?

i. Switch 27 must be set to its X-Y position.ii. Switch 10 must be set to its X-Y position.iii. Switch 18 must be set to its X-Y position.iv. Switch 11 must be set to its X-Y position.v. Button 30 must be depressed /down.

i, iii, v

✅

ii, iv, v

❌

ii, iii, v

❌

i, iv, v

❌

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The oscilloscope settings for waveform shown below are as follows:

• the CH1 VOLTS/DIV setting is 2 VOLTS/DIV,
• the CH2 VOLTS/DIV setting is 0.5 VOLTS/DIV and
• the TIME/DIV setting is 0.2 ms/DIV.

Note: each square on the oscilloscope grid / articulate has a height of 1 DIV and a width of 1 DIV.

Given that it is the Channel 2 waveform being displayed, what is the peak to peak voltage of the waveform in Volts (pk-pk)? 

Do not include the units i.e. Volts (pk-pk) in your answer as it will be marked as incorrect by the software. Enter the value only.

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To set the frequency to 1KHz, the frequency range button group labelled 2 can be set to:i. 500ii. 5kiii. 50kiv. 50v. 500kbefore setting the coarse and fine frequency controls.

iv

0%

i or ii

0%

ii or iii

❌

v

0%

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