Which of the following options is the closest in meaning to the phrase underlined in the sentence below? It is fascinating to see life forms cope with varied environment conditions.

Determine the correctness or otherwise of the following Assertion and the Reason,Assertion fast decoupled load flow method gives approximate load flow solution because it uses several assumptions Reason Accuracy depends on the power mismatch vector tolerance.

The operational amplifier shown in the figure has a finite gain A = 1000 and an infinite at time t = 0 as shown. Assuming that the operational amplifier is not saturated the time constant (in ms) of the output voltage V₀ is

An 8-bit unipolar successive Approximational register type analog to digital converter is used to convert 3.5 V to digital equivalent output. The reference voltage is +5 V. the output of the analog to digital converter at the end of 3^rd clock pulse after the start of conversion is

Which one of the following combination is incorrect?                                                                                      

Of  the four characteristics given below, what are the major requirements for an instrumentation amplifier?
I. high common mode rejection ratio
II. high input impedance
III. high linearity
IV. high output impedance                    

Consider a discrete time signal given by X[n] = (-0.25)ⁿu[n] + (0.5)ⁿu [-n-1] The region of convergence of its Z-transform would be

The primary mmf is least affected by the secondary terminal conditions in a                                                                                                                    

In a synchronous machine, hunting is predominantly damped by                                                                     

x (t)  is non-zero only for T_x < t < T'_x and similarly,y(t)  is non-zero only for T_y < t< T'_y . Let z(t) be convolution of x(t) and y(t) . Which one of the following statements is true?

For a periodic square wave, which one of the following statements is true?

In a press meet on the recent scam the minister said, “The buck here”. What did the minister convey by the statement?

A two bus power system shown in the figure supplies load of 1.0+j0.5 pu

The value of V₁ in pu and  d₂ respectively are

A two bus power system shown in the figure supplies load of 1.0+j0.5 pu

The value of V₁ in pu and  d₂ respectively are

The primary mmf is least affected by the secondary terminal conditions in a

A 3-phase, 50 Hz, six pole induction motor has a rotor resistance of 0.1 Ω and reactance of 0.92 Ω. Neglect the voltage drop in stator and assume that the rotor resistance is constant. Given that the full load slip is 3%, the ratio of maximum torque to full load torque is

Consider a HVDC link which uses thyristor based line-commutated converters as shown in the figure. For a power flow of 750MW from system 1 to system 2, the voltage at the two ends are given by V₁ = 500 kV and V₂ = 485 kV and the current, I = 1.5 kA. If the direction of power flow is to be reversed (that is from system 2 to system 1) without changing the electrical connections, then which one of the following combinations is feasible?

The self inductance of the primary winding of a single phase 50 Hz, transformer is 800 mH, and that of the secondary winding is 600 mH. The mutual inductance between these two windings is 480 mH. The secondary winding of this transformer is short circuited and the primary winding is connected to a 50 Hz single phase, sinusoidal voltage source. The current flowing in both the windings is less than their respective rated currents. The resistance of both windings can be neglected. In this condition, what is the effective inductance (in mH) seen by the source?                        

The core loss of a single phase, 230/115 V, 50 Hz power transformer is measured from 230 V side by feeding the primary (230 V side) from a variable voltage variable frequency source while keeping the secondary open circuited.The core loss is measured to be 1050 W for 230 V, 50 Hz input. The core loss is again measured to be 500 W for 138 V, 30 Hz input. The hysteresis and eddy current losses of the transformer for 230 V, 50 Hz input are respectively.

Of  the four characteristics given below, what are the major requirements for an instrumentation amplifier?
I. high common mode rejection ratio
II. high input impedance
III. high linearity
IV. high output impedance

The self inductance of the primary winding of a single phase 50 Hz, transformer is 800 mH, and that of the secondary winding is 600 mH. The mutual inductance between these two windings is 480 mH. The secondary winding of this transformer is short circuited and the primary winding is connected to a 50 Hz single phase, sinusoidal voltage source. The current flowing in both the windings is less than their respective rated currents. The resistance of both windings can be neglected. In this condition, what is the effective inductance (in mH) seen by the source?

A cascade of three identical module-5 counters has an overall modulus of

In an oscilloscope screen, linear sweep is applied at the

The impedance looking into nodes 1 and 2 in the given circuit is

In the formation of Routh-Hurtwiz array for a polynominal, all the elements of a row have zero values. This premature termination of the array indicates the presence of

Consider a one-turn rectangular loop of wire placed in a uniform magnetic field as shown in the figure. The plane of the loop is perpendicular to the field lines. The resistance is negligible. The magnetic flux density (in T) is function of time and is given by B(t) = 0.25 sinωt, where ω = 2π x 50 rad/s. the power absorbed (in W) by the loop from the magnetic fields is ……………… 

A  random variable X has probability density function f(x) as given below f(s) = 
If the expected value  then Pr[X < 0.5] is……               

Consider a function  where r is the distance distance from the origin and ȓ is the unit vector in the radial direction. The divergence of this function over a sphere of radius R, which includes the origin is

A (0-50 A) moving coil ammeter has a voltage drop of 0.1 V across its terminals at full scale deflection. The external shunt resistance (in mΩ) needed to extend its range to (0-500 A) is…………..                                                                               

A separately excited DC generator has an armature resistance of 0.1Ω and negligible armature inductance. At rated field current and rated rotor speed, its open-circuit voltage is 200 V. when this generator is operated at half the rated speed, with half the rated field current, an uncharged  1000 μF capacitor is suddenly connected across the armature terminals. Assume that the speed remains unchanged during the transient. At what time (in μs) after the capacitor is connected with the voltage across it reach 25 V?

If a continuous function f(x) does not have a root in the interval [a,b], then which one of the following statements is correct?   

Two independent random variables X and Y are uniformly distributed in the interval [-1,1]. The probability that max [X,Y] is less than ½, is

The slip of an induction motor normally does not depend on

Two identical coupled inductors are connected in series. The measured inductance for the two possible series connections are 380 μH and 240 μH. Their mutual inductance in μH is………….                                         

The sequence components of the fault current are as follows:

Consider an LTI system with transfer function 

If the input to the system is cos (3t) and the steady state output is A sin (3t + α), then the value of A is

A system with transfer function

Is excited by sin (t). The steady-state output of the system is zero at

Consider an LTI system with impulse response h(t) = e^-5t u(t). if the output of the system is y(t) = e^-3t u(t) –e ^-5t u(t), then the input x(t), is given by