Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 1 (Q.No. 9)
9.
The number of noise sources in a BJT are
3
2
1
4
Answer: Option
Explanation:

Shot noise, partition noise and thermal noise.

Discussion:
10 comments Page 1 of 1.

Abi said:   7 years ago
@Raja.

Bipolar junction transistor. :. It is a current controlled device. It has 3 terminals. There are emitter, base, collector.

Two types : PNP and NPN.

Raja said:   7 years ago
BJT means what?

Lokesh said:   8 years ago
Yes, Transit time noise also to be considered.

Uma said:   8 years ago
Then what about transit time noise?

Sandy said:   8 years ago
Thermal noise due to colission of electrons by random motion.

Naresh said:   8 years ago
How it possible?

Jyoti said:   10 years ago
Shot noise: It arises in electronic devices (such as diodes and transistor) because of the discrete nature of current flow in the devices.

Thermal noise: This noise arises due to random motion of electron in the conducting medium such as resistor. It is also called resistor noise, Johnson noise, white noise.

Venu said:   10 years ago
What is thermal noise and shot noise?

Toshi said:   1 decade ago
When a circuit is divided in between two or more paths then the noise generated is known as partition noise.

M.Rajesh said:   1 decade ago
What is meant by partition noise?

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