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If we compared to the USB, the power in the LSB is ________

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If we compared to the USB, the power in the LSB is ________

(a) one-fourth of USB

(b) twice of USB

(c) same as USB

(d) half of USB

The question was posed to me in a national level competition.

This intriguing question originated from Switching Circuit in section Side Band Techniques of Analog Communications

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Correct choice is (c) same as USB

Easy explanation: Generally, USB (upper sideband) and LSB (lower sideband) contain same information and are identical to one another. Thus, both entail same power.

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