Radiowaves of constant amplitude can be generated with(a) FET(b) filter(c) rectifier(d) oscillator
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D) Oscillator.....
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D) Oscillator
Explanation:
Oscillator is an electronic circuit that produces a periodic and oscillating electronic signal, often a sine wave or a square wave. Oscillators also convert the direct current from a power supply to an alternative current signal. Radio waves are a type of electromagnetic radiation with wavelengths in electromagnetic spectrum. Thus, radio waves of constant amplitude can be produced by using oscillator with proper feedback
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