Numerical - Maximum Channel capacity for given bandwidth & S/N ratio

Q.  If a noisy channel has a bandwidth of 4 MHz with signal to noise ratio of about 1, what would be the maximum capacity of the channel?
- Published on 23 Nov 15

a. 2 Mb/sec
b. 4 Mb/sec
c. 6 Mb/sec
d. 8 Mb/sec

ANSWER: 4 Mb/sec

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