Test 1 - Communication Systems | Electronics and Communication (ECE)

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Multiple Choice

Consider the amplitude modulated (AM) signal Ac cos$\omega_0$t + 2cos$\omega_m$t cos$\omega_0$t. For demodulating the signal using envelope detector, the minimum value of Ac should be

  1. 2
  2. 1
  3. 0.5
  4. 0
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