Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 11 (Q.No. 15)
15.
e-2t is __________ .
energy signal
power signal
neither energy signal nor power signal
both energy and power signal
Answer: Option
Explanation:

E = e-4tdt

which is infinity

Power of the signal

This is of ∞/∞ form, we make use of L' hospital rule

e-2t is neither an energy signal nor a power signal.

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