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What is the full form of AFC?

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What is the full form of AFC?

(a) Amplitude to frequency conversion

(b) Automatic frequency conversion

(c) Automatic frequency control

(d) Audio frequency control

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Enquiry is from Types of Frequency Modulation in portion Angle Modulation of Analog Communications

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Right choice is (c) Automatic frequency control

Easy explanation: AFC stands for Automatic frequency control. It is a method to automatically keep a resonant circuit tuned to a frequency of an incoming radio signal. It is used in receivers to tune to the desired frequency.

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