An Ideal power limited communication channel with additive white Gaussian noise with 1 MHz bandwidth and Signal to Noise Ratio of 15 is transmitting the information at the theoretical maximum rate. If the Signal to Noise ratio is reduced to 7, how much bandwidth is required to maintain the same rate:

An Ideal power limited communication channel with additive white Gauss

1.	An Ideal power limited communication channel with additive white Gaussian noise with 1 MHz bandwidth and Signal to Noise Ratio of 15 is transmitting the information at the theoretical maximum rate. If the Signal to Noise ratio is reduced to 7, how much bandwidth is required to maintain the same rate:
A.	15 / 7 MHz
B.	4 / 3 MHz
C.	2 MHz
D.	None of these
Answer» C. 2 MHz

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