A system has transfer function (2 – s)/(2 + s) what is

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A system has transfer function (2 – s)/(2 + s) what is it’s gain at 2 rad/sec?

1. 1
2. 0
3. ∞
4. 2/5

Correct Option: A

s = jω, ω = 2 rad/sec, s = j2. rad/sec

H(s) =	2 -j2	, /H(s)/ =	√2² + (-2)²
	2 + j2		√2² + (2)²