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 #90567
Back to Home
View All ELECTRONIC DEVICES Questions
15 Views
Question
Which phenomenon allows a cathode to emit electrons when heated?
A. Photoelectric effect
B. Thermionic emission
C. Electromagnetic induction
D. Capacitive coupling
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
How does the capacitor input filter affect the average output voltage?
9
What is the typical lifespan of vacuum tubes?
22
What is the key difference between isolated atoms and solids in electron energy?
13
Which Indian state government was accused of large-scale voter disenfranchisement through the Specia...
(Current Affairs)
22
What was the coldest place in Punjab and Haryana on December 27, 2025, as per meteorological reports...
(Current Affairs)
5