To Explain: The difference between AM and FM radio.
To Draw: A sketch of how a carrier wave is modulated in AM and FM radio signals.
Explanation of Solution
Introduction:
The magnetic field that changes is generated by changing the electric field around a charge. Likewise, the electric field that changes is generated by changing the magnetic field around a charge. The
Amplitude modulation (AM) wave:
The amplitude of the audio signal is modulated with the amplitude with the amplitude of the carrier (high frequency) signal.
Frequency modulation (FM) wave:
The amplitude of the audio signal is modulated with the frequency of the carrier (high frequency) signal.
The carrier wave is shown below:
Modulated AM wave is shown below:
Modulated FM wave is shown below:
Conclusion:
Hence, the difference between AM and FM waves are discussed. Sketch for both the FM and AM waves are drawn.
Chapter 11 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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