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Match these men with their contributions to vacuum tubes:

17. Heinrich Geissler
18. Sir William Crookes
19. Michael Faraday
20. Joseph John Thomson
21. Julius Plücker

a. developed cathode ray tube
b. assisted Heinrich Geissler
c. developed gas-discharge tube
d. first attempted to pass electric current across a vacuum
e. discovered electrons

Sagot :

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Final answer:

Heinrich Geissler and William Crookes played key roles in the development of cathode ray tubes, while J.J. Thomson confirmed the negative charge of cathode rays and discovered electrons.


Explanation:

Heinrich Geissler developed the first cathode ray tube, creating a vacuum in a tube to study gas behavior. William Crookes furthered this work by displaying cathode rays and evacuating air from the tube. J.J. Thomson contributed by confirming the negative charge of cathode rays and discovering electrons.


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