Academic Resource
Aptitude
Data Interpretation
Verbal Reasoning
Non Verbal Reasoning
Verbal Ability
Programming
General Knowledge
Puzzle
Engineering
Computer Engineering
Electronics and Communication
Electrical Engineering
Mechanical Engineering
Civil Engineering
Biotechnology
Architecture & Planning
Online Test
Aptitude Test
Data Interpretation Test
Verbal Reasoning Test
Non Verbal Reasoning Test
Verbal Ability Test
Exams
More
Full Forms
Home
»
Analog Electronic Circuits
»
Analog electronics circuits miscellaneous
» Question
Analog electronics circuits miscellaneous
Easy Questions
Analog Electronic Circuits
Analog electronics circuits miscellaneous
An amplifier has an input power of 2 mW. The power gain of amplifier has 60 dB. The output power will be:
6 µW
120 µW
2 mW
2 W
Correct Option:
D
Power gain = 20 log
10
P
o
P
i
or 60 = 20 log
10
P
o
P
i
or 3 = log
10
P
o
P
i
or
P
o
= 10
3
P
i
or P
o
= P
i
× 10
3
= 2 × 10
–3
× 10
3
= 2 W
Previous Question
Next Question
Your comments will be displayed only after manual approval.
Post your Comment
