Electronics and Communication Engineering - Radio Receivers - Discussion
Discussion Forum : Radio Receivers - Section 1 (Q.No. 1)
1.
The noise generated by a resistor depends upon
Discussion:
11 comments Page 1 of 2.
Giri prasath said:
1 decade ago
Temperature is directly proportional to the Noise created by resistor.
Naveen said:
1 decade ago
Because it has linear characteristics if noise created it would not effect resistor value.
Mad said:
1 decade ago
As temperature increases energy of electrons increases, then random motion of electrons increases causing noise.
Arun kumar said:
9 years ago
Power losses is directly proportional to temperature increases.
Cslohumi said:
9 years ago
Noise generated by resistors results from the motion of electrons within the resistor.
The noise power is proportional to the bandwidth.
Then, V = square root (4 kTBR).
The noise power is proportional to the bandwidth.
Then, V = square root (4 kTBR).
Prathyusha Chowdary musunuri said:
9 years ago
Noise is directly proportional to the bandwidth of a signal and absolute temperature.
Naresh said:
8 years ago
V = square root (4 kTBR).
So, noise proportional to both R, T, B.
So, noise proportional to both R, T, B.
Shaik ejaz said:
8 years ago
If the resistance is high then heat dissipation also high. High heat will effect the signal also signal strength will be decreases.
Bhupender said:
8 years ago
I agree @Naresh.
Noise should depend on resistance value as well as evident from the formula. Otherwise, there will be no difference between metals and non-metals.
Noise should depend on resistance value as well as evident from the formula. Otherwise, there will be no difference between metals and non-metals.
RAJIVE said:
7 years ago
Also on frequency of operation.
(2)
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