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 #90626
Back to Home
View All ELECTRONIC DEVICES Questions
34 Views
Question
Why are vacuum tubes considered one-directional devices?
A. Because they only work with DC
B. Because electrons can only flow from cathode to anode
C. Because they block all current
D. Because they reverse polarity
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What is the primary source of electrons in the conduction band of an intrinsic semiconductor?
19
What is the shape of the input voltage waveform applied to each diode in a full-wave rectifier?
27
What is the energy of a photon with frequency 4.73 × 10¹⁴ Hz in joules?
21
What is the total value of Letters of Intent (LoIs) signed by the Karnataka government with leading ...
(Current Affairs)
26
Which department in Delhi has initiated the replacement of decades-old water pipelines due to contam...
(Current Affairs)
31