Electronics and Communication Engineering (ECE) Exam > Electronics and Communication Engineering (ECE) Questions > An amplifier has three stages for which Te1= ...
Start Learning for Free
An amplifier has three stages for which Te1 = 150 K (first stage), Te3 = 350 K, and Te3 = 600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 K
Que: The available power gain of the second stage is
- a)12
- b)14
- c)16
- d)18
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
An amplifier has three stages for which Te1= 150 K (first stage), Te3=...
Most Upvoted Answer
An amplifier has three stages for which Te1= 150 K (first stage), Te3=...
Given information:
- Three stages: First stage, second stage, and output stage
- Te1 = 150 K (first stage)
- Te2 = unknown (second stage)
- Te3 = 600 K (output stage)
- Available power gain of the first stage = 10
- Overall input effective noise temperature = 190 K
To find:
- Available power gain of the second stage
Solution:
1. Find the overall available power gain:
- The overall available power gain (G) of the amplifier is the product of the available power gains of each stage:
G = G1 x G2 x G3
- We know G1 = 10 (given)
- We don't know G2 and G3 yet, so we'll leave them as variables for now:
G = 10 x G2 x G3
2. Find the overall effective noise temperature:
- The overall effective noise temperature (Te) of the amplifier is given as 190 K (given)
3. Find the overall noise factor:
- The overall noise factor (F) of the amplifier is related to the overall effective noise temperature by:
F = (Te / To) + 1
- To is the reference temperature, which is typically 290 K
- Plugging in the values, we get:
F = (190 / 290) + 1
F = 1.655
4. Find the noise factor of the first stage:
- The noise factor (F1) of the first stage is related to its effective noise temperature (Te1) and available power gain (G1) by:
F1 = (Te1 / To) + 1 / G1
- Plugging in the values, we get:
F1 = (150 / 290) + 1 / 10
F1 = 1.517
5. Find the noise factor of the output stage:
- The noise factor (F3) of the output stage is related to its effective noise temperature (Te3) and available power gain (G3) by:
F3 = (Te3 / To) + 1 / G3
- Plugging in the values, we get:
F3 = (600 / 290) + 1 / G3
F3 = 3.069 + 1 / G3
6. Find the noise factor of the second stage:
- The noise factor (F2) of the second stage can be found by subtracting the noise factors of the first and output stages from the overall noise factor:
F2 = F / (F1 x F3)
F2 = 1.655 / (1.517 x (3.069 + 1 / G3))
- We don't know G3 yet, so we'll leave it as a variable for now.
7. Find the available power gain of the second stage:
- The available power gain (G2) of the second stage is related to its noise factor (F2) and effective noise temperature (Te2) by:
G2 = (F2 - 1) x To / Te2
- Plugging in the values, we get:
G2 = (1.655 / (1.517 x (3.069 + 1 / G3)) - 1) x 290 / Te2
- We don't know Te2 or G3 yet, so we
- Three stages: First stage, second stage, and output stage
- Te1 = 150 K (first stage)
- Te2 = unknown (second stage)
- Te3 = 600 K (output stage)
- Available power gain of the first stage = 10
- Overall input effective noise temperature = 190 K
To find:
- Available power gain of the second stage
Solution:
1. Find the overall available power gain:
- The overall available power gain (G) of the amplifier is the product of the available power gains of each stage:
G = G1 x G2 x G3
- We know G1 = 10 (given)
- We don't know G2 and G3 yet, so we'll leave them as variables for now:
G = 10 x G2 x G3
2. Find the overall effective noise temperature:
- The overall effective noise temperature (Te) of the amplifier is given as 190 K (given)
3. Find the overall noise factor:
- The overall noise factor (F) of the amplifier is related to the overall effective noise temperature by:
F = (Te / To) + 1
- To is the reference temperature, which is typically 290 K
- Plugging in the values, we get:
F = (190 / 290) + 1
F = 1.655
4. Find the noise factor of the first stage:
- The noise factor (F1) of the first stage is related to its effective noise temperature (Te1) and available power gain (G1) by:
F1 = (Te1 / To) + 1 / G1
- Plugging in the values, we get:
F1 = (150 / 290) + 1 / 10
F1 = 1.517
5. Find the noise factor of the output stage:
- The noise factor (F3) of the output stage is related to its effective noise temperature (Te3) and available power gain (G3) by:
F3 = (Te3 / To) + 1 / G3
- Plugging in the values, we get:
F3 = (600 / 290) + 1 / G3
F3 = 3.069 + 1 / G3
6. Find the noise factor of the second stage:
- The noise factor (F2) of the second stage can be found by subtracting the noise factors of the first and output stages from the overall noise factor:
F2 = F / (F1 x F3)
F2 = 1.655 / (1.517 x (3.069 + 1 / G3))
- We don't know G3 yet, so we'll leave it as a variable for now.
7. Find the available power gain of the second stage:
- The available power gain (G2) of the second stage is related to its noise factor (F2) and effective noise temperature (Te2) by:
G2 = (F2 - 1) x To / Te2
- Plugging in the values, we get:
G2 = (1.655 / (1.517 x (3.069 + 1 / G3)) - 1) x 290 / Te2
- We don't know Te2 or G3 yet, so we
Attention Electronics and Communication Engineering (ECE) Students!
To make sure you are not studying endlessly, EduRev has designed Electronics and Communication Engineering (ECE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electronics and Communication Engineering (ECE).
|
Explore Courses for Electronics and Communication Engineering (ECE) exam
|
|
Similar Electronics and Communication Engineering (ECE) Doubts
Top Courses for Electronics and Communication Engineering (ECE)View all
An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer?
Question Description
An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer?.
An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer?.
Solutions for An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electronics and Communication Engineering (ECE).
Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free.
Here you can find the meaning of An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer?, a detailed solution for An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice An amplifier has three stages for which Te1= 150 K (first stage), Te3=350 K, and Te3=600 K (output stage). Available power gain of the first stage is 10 and overall input effective noise temperature is 190 KQue: The available power gain of the second stage isa)12b)14c)16d)18Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Electronics and Communication Engineering (ECE) tests.
|
|
Explore Courses for Electronics and Communication Engineering (ECE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
x
![]()
For Your Perfect Score in Electronics and Communication Engineering (ECE)
The Best you need at One Place
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup