Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 12 (Q.No. 21)
21.
In the following network, the switch is closed at t = 0 and the sampling starts from t = 0. The sampling frequency is 10Hz.

The samples x(n) (n = 0, 1, 2, ...) are given by
5(1 - e-0.05n)
5e-0.05n
5(1 - e-5n)
5e-5n
Answer: Option
Explanation:

Initial voltage across R = 5Vn

Final voltage across R = 0V

Thus VR = 5.0-0.5t

When we sample this at f = 102

We get x(n) = .

Discussion:
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