The sum of the Eigenvalues in the given matrix is :

Electronics and Communication Engineering (ECE) : Automatic Control Systems - Quiz(MCQ)

Sum of the elements of any row

Sum of the elements of any column

The sum of all non-zero components in the matrix

Sum of the principal diagonal elements

Correct Answer : Option (D) : Sum of the principal diagonal elements

Explanation : The sum of Eigenvalue of a given matrix is generally called the trace of that matrix. The trace of a matrix is the sum of the diagonal elements of a matrix.

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Q .

For a quadratic factor in denominator of transfer function the phase angle at corner frequency (in Bode phase angle plot)

is +90°

is -90°

depends on the damping factor

None of the above

Correct Answer : Option (B) : is -90°

Q .

The response to sinusoidal excitation can be found by

setting s = jω in the network function

setting s = -jω in the network function

taking inverse transform of network function

None of the above

Correct Answer : Option (A) : setting s = jω in the network function

Q .

The resolution of a wire wound potentiometer is about

0.1%

0.001%

Correct Answer : Option (C) : 0.1%

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