If the frequency of 3 kHz signal has to be transmitted through amplitude modulation. Which of the following frequency should use as a carrier frequency?choose the correct option from the given options.
(A) 30 HZ
(B) 300 HZ
(C) 3000 HZ
(D) 3 MHZ
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Explanation:
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Answer:
(D) 3 MHZ
Explanation:
If the frequency of 3 kHz signal has to be transmitted through amplitude modulation the most suitable option give in the question is 3 MHz among 30 Hz, 300 Hz, 3000 Hz, and 3 MHz. As the is to be transmitted from one place to another place after modulation so the frequency of high value is used as carrier frequency to modulate the actual frequency so that the actual frequency can't disappear in the middle of a transmission.
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