Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 7 (Q.No. 18)
18.
The energy of constant-amplitude complex valued exponential sequence is __________ (where A is the constant amplitude)
Answer: Option
Explanation:
Let the constant amplitude complex valued exponential sequence.
x(n) = Ae-jωn
Energy = 
|x(n)|2 = |Ae-jωn|2
A2 |(e-jωn)|2 = A2(∞) = ∞
Hence energy in infinite.
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