If x = a(θ + sin θ) and y = a(1 - cos θ), then dy/dx will be equal to _____
A coin is tossed 4 times. What is the probability of getting heads exactly 3 times?
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The eigen values of a matrix A are 1, -2 and 3. The eigen values of 3I - 2A + A2 are _____
In 'ABCD' parameters of a two port network,the condition for reciprocity is ____
The equivalent resistance across terminals A & B of the circuit shown in below figure is____
In a 2nd order system, the peak over shoot is 100%, the value of damping factor is _____
For a stable system GM and PM respectively, are
The most efficient method of damping is
Two resistance 100 ± 5 Ω and 200 ± 10 Ω are connected in series. If the deviations are standard deviations, the resultant resistance is _____
A current transformer has a rating of 100/5 A. Its magnetizing and loss components of exciting current are 2 A and 1 A respectively and secondary winding burden is purely resistive, its transformation ratioat rated current is _____
In the logic circuit shown in below figure, if A = 0 & B = 1 then possible values of C & X respectively
Which of the following logic gates use least power
In an FETas VGS increasing in reverse bias, the value of gm
Two parallel infinite filamentary wires carrying equal currents and separated by ‘2h’ distance. If the currents are in opposite direction to each other, then the magnitude of magnetic field at the centre of twoconductors is______
If a plot of signal x(t) is as shown in the below figure,
then the plot of the signal x(1 -t) will be
The z transform of the sequence (ak) for k > 0 is _____
A river has a discharge of 400 liters/sec and the available head is 80 m. If the machine efficiency is 87%, the power delivered is
Corona loss of a 400 kV, 75 Hz transmission is 4800 W. The corona loss of the system,for 25 Hz, 400 kV input will be_______
Choose the incorrect statement related to SF6 gas
The number of parallel paths in a 4 layer, 8 pole wave winding d.c. machine is
A d.c, differentia! compound generator acts as
The maximum efficiency of a 50 KVA transformer having iron loss of 450 W and full load copper loss as 800 W occurs at
The main advantage of universal motor is
The power electronic device can be used incurrent source inverter (CSI) is_____________
In the circuit shown in below if Th1 has turnoff period as 32 μs, the suitable value of capacitor is _______
The values of a, b and c such that is irrotational, are, respectively
In a unsymmetrical transmission system the distance between conductors ab, be and ca is 3 m, 4 m and 5 m respectively. The radius of each conductor is 2 cm. Thecapacitance of each phase is _______
The network A in figures (a) and (b) is a passive and contains only linear resistors. The currents in figure (a) are as marked. The value of lx in figure (b) is _______
A system has a transfer function G(s) = Value of “ω” at which imaginary magnitude is zero is _________