BARC EE : Full Syllabus Test -4

The Hysteresis width for the circuit shown below is _______V. (Consider every element to be ideal).

The main purpose of using core transformer is to

For High head and low discharge the water turbine used is

A 400kV, 3-phase, 50Hz overhead line of surge impedance of 400ohms is delivering 300MW load. The voltage profile of the line is -

The output of a linear system for a ramp input is t²e^–t, the transfer function is

Which of the following controllers acts as high pass filter, and reduces rise time of system?

For the bridge circuit shown in below figure find the value of  R and C in a condition when bridge is balanced.

Consider 

C₂ = 0.05 μf, R₃ = 20 kΩ

C₄ = 300 pf, R₄ = 1.2 kΩ

The Incorrect statement is

For an ideal step-down (n : 1) transformer, which one of the following is the ABCD parameter matrix?

Single-phase current source inverter is connected with capacitive load only the waveform of the output voltage across the capacitor for constant source current will be,

A 230 V DC shunt motor has an armature circuit resistance of 0.4 Ω and field resistance of 115 Ω. This motor drives a constant torque load and takes an armature current of 20A at 800 RPM. If motor speed is to be raised from 800 RPM to 1000 RPM, find the resistance that must be inserted in the field circuit. Assume magnetization curve to be a straight line.

For phase-controlled converter shown in figure below, the peak instantaneous output voltage is 200 V. Its firing angle is ________degrees if Thyristor is fired in every positive half cycle.

A DC shunt motor runs at 500rpm at 220V, a resistance of 4.5ohm is added in series with armature for speed control, R_a is 0.5ohm, what is the armature current during stalling?

In 8085 microprocessor to complement the higher significant nibble of the accumulator _________ instruction is used.