For physically realizable systems, the loop gain L(s) Gc(s)G(s) must be large for high frequencies True or False

Question

For physically realizable systems, the loop gain L(s)   Gc(s)G(s) must be large for high frequencies  True or False

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Question: For physically realizable systems, the loop gain L(s) = Gc(s)G(s) must be large for high frequencies. True or False