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An important property for causality of the system is __________

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in Signals and Systems by (1.2m points)
An important property for causality of the system is __________

(a) Initial rest

(b) Final rest

(c) It is memoryless

(d) It is unstable

I have been asked this question in unit test.

My question is based upon Properties of LTI Systems in division Time-Domain Analysis of CT Systems of Signals and Systems

1 Answer

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by (42.1k points)
Right answer is (a) Initial rest

To elaborate: A causal system follows what is called initial rest concept. That is if the input of the system is 0 upto some point in time than the output of the system should also be zero upto that time.

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