Content protected from screenshots
GKFix.in
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
GKFix.in
Home
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
Start Quiz
GKFix MCQ Question
Test your knowledge and learn something new
Home
ELECTRONIC DEVICES
Question #90549
Back to Home
View All ELECTRONIC DEVICES Questions
22 Views
Question
Why is vacuum required in vacuum tubes?
A. To cool the electrodes
B. To increase the voltage
C. To prevent electrons from losing energy due to collisions with air molecules
D. To make the tube lighter
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What happens to the depletion region when reverse bias voltage is increased?
14
What type of dopant is used to create a p-type semiconductor in germanium?
15
What is the symbol for the unified atomic mass unit?
13
How many Bengal tiger cubs born at the Delhi Zoo on August 4 are currently in critical condition?
(Current Affairs)
22
What is the new US tariff rate on Indian products effective from August 27, 2025, as per the draft n...
(Current Affairs)
23