Question 30

If the highest frequency modulating a carrier is 5 kHz, then the number of AM broadcast stations accommodated in a 90 kHz bandwidth are ______

Name: If the highest frequency modulating a carrier is 5 kHz, then the number of AM broadcast stations accommodated in a 90 kHz bandwidth are ______
Uploaded: 2026-06-24T17:03:51.946570+05:30
Duration: 1 min 27 s
Description: If the highest frequency modulating a carrier is 5 kHz, then the number of AM broadcast stations accommodated in a 90 kHz bandwidth are ______

Correct Answer: 9

Solution

In amplitude modulation (AM), the bandwidth required for each broadcast station is twice the highest modulating frequency.

Given that the highest modulating frequency is 5 kHz, the bandwidth per station is $$2 \times 5 = 10$$ kHz.

The total available bandwidth is 90 kHz. Therefore, the number of AM broadcast stations that can be accommodated is $$\frac{90}{10} = 9$$.

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