Question
Download Solution PDFIn a CRT oscilloscope, the horizontal deflection plates are used to:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is: 2) Create a sweeping movement of the beam from left to right
Explanation:
In a CRT (Cathode Ray Tube) oscilloscope:
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Horizontal deflection plates are responsible for moving the electron beam left to right (and back) in a controlled sweep. This generates the timebase (X-axis) of the displayed waveform.
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The sweep can be triggered (for stable displays) or free-running (for repetitive signals).
Option Analysis
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Focus the beam → This is done by the focusing anode, not the deflection plates.
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Control the electron gun → The electron gun emits the beam, but deflection plates only steer it.
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Display the vertical signal → The vertical deflection plates (Y-axis) handle this, not the horizontal plates.
Thus, the correct choice is 2)
Last updated on Jun 7, 2025
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