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1. A system is at rest for t < 0. It is given by If steady state is reached at t = 0, then the value of angle A is given by
(A): ∞
(B): - 45°
(C): 0
(D): 45 °
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By: guest on 02 Jun 2017 01.06 am
= U(t) sin (2t + A) y(s).s + 2y(s) = char.eqn S + 2 = 0 jω + 2 = 0 j2 + 2 = 0 1 + j = 0 tan-1(1) 45°.
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