GATE 2022 Rapid Revision Quiz 6

Two Power transistors are arranged in Darlington pair each having current gains 6 and 8. What will be the overall current gain of the Darlington pair?

A unity feedback system has open loop transfer function G(s).

Polar plot of G(jω) is shown in figure below:

Find out the value of θ______(in degrees). If the phase margin is 75° of the feedback system.

The power system having 200 buses. There is one slack bus, 20 generator buses and remaining are load buses. The load flow studies are conducted by Newton Raphson (N.R) method. Number of equations handled by N.R method is

Minimum number of 2 × 1 MUX is required to implement 9 × 1 Mux is.

The circuit shown in figure below represents which of the following filters?

In the circuit shown, the switch has been closed for a long time. It is open at t =

The value of = _____ V/s.

A 4-pole lap wound generator with 780 armature conductor and an armature current of 60 A, the developed torque is 18 Nm. If the size of the core is 8 cm × 4 cm, then find the flux density of 4 pole dc generator in Wb/m².

Consider the system of equation given below-

kx + 2y + 2z = 0

2x + ky + 2z = 0

2x + 2y + kz = 0

If this system has non-trivial solution, then the set of possible values of “k” will be