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electronics and communication engineering exam question papers
1. For a second order instrument, the optimum range of ξ (damping ratio), which gives good frequency response over a wide range of frequencies is
(A): 0.5 to 0.6
(B): 0.6 to 0.7
(C): 0.7 to 0.8
(D): 0.8 to 1.0
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