General Knowledge MCQs (College Level) From Textbook

Free Cathode Ray Tube Learning App Download | General Knowledge e-Book PDF

General Knowledge MCQs – Certification Test 632

Cathode Ray Tube Quiz (Question 632) – Learning App & e-Book Download

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MCQ: 632

Cathode Ray Tube' which used cold cathode diode was invented by

  1. Thomas Edison
  2. Horace Day
  3. Fredinand Braun
  4. Oliver Evans

Cathode Ray Tube Study Material – General Knowledge App & eBook Quiz

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Cathode Ray Tube Quiz App (iOS & Android)

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