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Q. |
For a causal L.T.I. system, the impulse response is 0 for |
A. | t<0 |
B. | t=0 |
C. | t>0 |
D. | always |
Answer» A. t<0 | |
Explanation: since the system is causal, the impulse response won’t exist for t<0. this is because the output of the system should not depend on future inputs. thus only option t<0 is correct. |
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