

MCQOPTIONS
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1. |
a0 sn + a1 sn-1 + a2sn-2 + ...........+ an-1 s1 + an The necessary condition for system stability for the above characteristic equation is |
A. | All the coefficients of the characteristic equation should be zero. |
B. | All the coefficient of the characteristic equation should be unity. |
C. | All the coefficients of the characteristic equation should be positive and real. |
D. | All the coefficients of the characteristic equation should be negative and imaginary. |
Answer» D. All the coefficients of the characteristic equation should be negative and imaginary. | |