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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Laplace transform

Choose difficulty:

Beginner

Intermediate

Advanced

Which of the following signals will have a left-sided ROC for their Laplace transform?

u(-t)

Explanation

\sin(t)

Explanation

u(t-4)

Explanation

|\sin(t)|

Explanation

Select the correct statement from below for the system function

X(s) = \frac{(s + 1)}{(s - 1)}

a: system can be causal Explanation

Explanation

b: system can be stable Explanation

Explanation

c: system can be both causal & stable Explanation

Explanation

d: cannot say Explanation

Explanation

A system function is of the form

H(s) = \frac{(s-a)}{(s-b)}

, where

a

is not equal to

b

and they are real numbers. This system can be both stable and causal if

a > 0

Explanation

a < 0

Explanation

b > 0

Explanation

b < 0

Explanation

The system with transfer function

H(s) = \frac{1}{(s+0.2)}

, would behave as the following filter?

a: low pass Explanation

Explanation

b: high pass Explanation

Explanation

c: band pass Explanation

Explanation

d: none of these Explanation

Explanation

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