BARC EE Quiz 7

Which of the following represents a stable system?

When V_GS = 0 V, a JFET is act as

For the voltage follower circuit shown if open loop gain is 2, then close loop gain is:

For Base-band binary PAM system, bit-rate and roll of factor is 56 Kbps and 0.25, respectively. The Bandwidth requirement is

In Routh stability criteria, when all elements of one row become zero and this is no sign change then the system is:

A second order control system is given by transfer function. What is the time at which second peak overshoot occurs in the system?

The propagation delay of each NOT gate tom produce a frequency of 5 GHz is:

The phenomenon of rotor about load is termed as:

A 60 kW, 415 V, 3-phase synchronous motor is delivering rated load with 85% efficiency if the power factor is 0.8 loading, the armature current is

Suppose a 3-phase, 4 pole, 60 Hz, squirrel cage Induction motor is working at 400 V. Now motor works at 30 Hz, keeping flux same, then the new working voltage is __________V.