In a lag network the input frequency is 100 fc where fc is critical frequency. The voltage gain is

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

0 dB

-20 dB

-40 dB

-60 dB

Correct Answer : Option (C) : -40 dB

Recently Updated in Automatic Control Systems Questions

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

is +90Â°

is -90Â°

depends on the damping factor

None of the above

Correct Answer : is -90Â°

The response to sinusoidal excitation can be found by

setting s = jÏ‰ in the network function

setting s = -jÏ‰ in the network function

taking inverse transform of network function

None of the above

Correct Answer : setting s = jÏ‰ in the network function

The resolution of a wire wound potentiometer is about

0.1%

0.001%

Correct Answer : 0.1%