Electrical Engineering · Electrical Measurements
Which material is used as an internal coating (Aquadag) in a Cathode Ray Tube (CRT) of a Cathode Ray Oscilloscope (CRO) to absorb secondary electrons?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Phosphorus
- 2Silicon
- 3Sulphur
- 4Carbon✓
Correct answer
Carbon
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