Question

An excitation is applied to a system at t = T, and its response is zero for -∞ < t < T, such a system is

a.

non-causal system

b.

Stable system

c.

causal system

d.

unstable system

Answer: (c).causal system

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Q. An excitation is applied to a system at t = T, and its response is zero for -∞ < t < T, such a system is

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