In Frequency Modulation (FM), the frequency of the carrier wave varies according to the instantaneous amplitude of the modulating (message) signal, while the amplitude of the carrier remains constant.
In frequency modulation, the amplitude of the carrier waves remains the same but its frequency changes is proportion to:
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Question context
This question is part of 📡 Electronics and Communication Engineering (ECE) within the broader 🛠️ Engineering Essentials subject and appears in the Engineering College Admission Test (ECAT) preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.