Topic: Electronics Engineering
A communication channel with Additive White Gaussian Noise, has a bandwidth of 4 kHz and SNR of 31. Its channel capacity is
- A. 1.6 kbps
- B. 20 kbps
- C. 32 kbps
- D. 256 kbps
Answer: B. 20 kbps
Explanation: According to Shannon's channel capacity theorem: $C = B \log_{2}(1+SNR) = 4 \log_{2}(1+31) = 4 \log_{2}(32) = 4 \times 5 = 20$ kbps.