GATE Electrical Engineering (EE) 2023 Solved Paper

Question : 27 of 65

Marks: +1, -0

Which of the following statement(s) is/are true?

If an LTI system is causal, it is stable
A discrete time LTI system is causal if and only if its response to a step input 𝑢[𝑛] is 0 for 𝑛 < 0
If a discrete time LTI system has an impulse response ℎ[𝑛] of finite duration the system is stable
If the impulse response 0 < |ℎ[𝑛]| < 1 for all 𝑛, then the LTI system is stable.

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