In the given circuit, the silicon transistor has $$\beta $$ $$=75$$ and a collector voltage $${V_C} = 9\,V.$$ Then the r

Consider the circuit shown in the figure. In this circuit $$R = 1\,\,k\Omega ,$$ and $$C = 1\,\,\mu F.$$ The input volta

Of the four characteristics given below, which are the major requirements for an instrumentation amplifier? P. $$\,\,\,\

The op-amp shown in the figure has a finite gain $$A = 1000$$ and an infinite input resistance. A step voltage $${V_i}

Find the transfer function $${{Y\left( s \right)} \over {X\left( s \right)}}$$ of the system given below:

For the signal-flow graph shown in the figure, which one of the following expressions is equal to the transfer function

A Bode magnitude plot for the transfer function $$𝐺(𝑠)$$ of a plant is shown in the figure. Which one of the following

The transfer function of a second order real system with a perfectly flat magnitude response of unity has a pole at $$\l

In the signal flow diagram given in the figure, $${u_1}$$ and $${u_2}$$ are possible inputs whereas $${y_1}$$ and $${y_2

$$f\left( {A,\,B,\,C,\,D} \right) = \Pi M\left( {0,1,3,4,5,7,9,11,12,13,14,15} \right)$$ is a Maxterm representation of

In the $$4 \times 1$$ multiplexer, the output $$F$$ is given by $$F = A \oplus B.$$ Find the required input $${{\rm I}_3

The figure shows a digital circuit constructed using negative edge triggered $$J-K$$ flip flops. Assume a starting state

An $$8$$-bit, unipolar Successive Approximation Register type $$ADC$$ is used to convert $$3.5$$ $$V$$ to digital equiva

In the given circuit, the parameter k is positive, and the power dissipated in the 2 Ω resistor is 12.5 W. The value of

For the given circuit the Thevenin equivalent is to be determined. The Thevenin voltage, VTh (in volt), seen from termin

An inductor is connected in parallel with a capacitor as shown in the figure. As the frequency of current i is increase

The circuit shown in the figure has two sources connected in series. The instantaneous voltage of the AC source (in volt

In a linear two-port network, when 10 V is applied to Port 1, a current of 4 A flows through Port 2 when it is short-cir

The voltages developed across the 3Ω and 2Ω resistors shown in the figure are 6V and 2V respectively, with the polarity

A ($$0-50$$ $$A$$) moving coil ammeter has a voltage drop of $$0.1$$ $$V$$ across its terminals at full scale deflection

When the Wheatstone bridge shown in the figure is used to find the value of resistor $${R_x},$$ the galvanometer $$G$$ i

An unbalanced $$DC$$ Wheatstone bridge is shown in the figure. At what value of $$p$$ will the magnitude of $${V_0}$$ be

A separately excited DC generator has an armature resistance of 0.1 $$\Omega$$ and negligible armature inductance. At ra

A separately excited DC motor runs at 1000 rpm on no load when its armature terminals are connected to a 200 V DC source

A DC motor has the following specifications: 10 Hp, 37.5 A, 230 V; flux/pole = 0.01 Wb, number of poles = 4, number of c

The self inductance of the primary winding of a single phase, 50 Hz, transformer is 800 mH, and that of the secondary wi

Two single-phase transformers T1 and T2 each rated at 500 kVA are operated in parallel. Percentage impedances of T1 and

A 200/400 V, 50 Hz, two-winding transformer is rated at 20 kVA. Its windings are connected as an auto-transformer of rat

A 3-phase 50 Hz square wave (6-step) VSI feeds a 3-phase, 4 pole induction motor. The VSI line voltage has a dominant 5t

Consider a function $$\overrightarrow f=\frac1{r^2}\widehat r$$ where r is the distance from the origin and $$\widehat r

A parallel plate capacitor is partially filled with glass of dielectric constant 4.0 as shown below. The dielectric stre

A steady current I is flowing in the −x direction through each of two infinitely long wires at $$y=\pm\frac L2$$ as show

Consider a one-turn rectangular loop of wire placed in a uniform magnetic field as shown in the figure. The plane of the

If a continuous function $$f(x)$$ does not have a root in the interval $$\left[ {a,b} \right],\,\,$$ then which one of t

If the sum of the diagonal elements of a $$2 \times 2$$ matrix is $$-6$$, then the maximum possible value of determinant

The maximum value of $$'a'$$ such that the matrix $$\left[ {\matrix{ { - 3} & 0 & { - 2} \cr 1 & { -

Two players, $$A$$ and $$B,$$ alternately keep rolling a fair dice. The person to get a six first wins the game. Given t

A random variable $$X$$ has probability density function $$f(x)$$ as given below: $$$\,\,f\left( x \right) = \left\{ {\

Given Set $$\,\,\,A = \left\{ {2,3,4,5} \right\}\,\,\,$$ and Set $$\,\,\,B = \left\{ {11,12,13,14,15} \right\},\,\,\,$$

The probabilities that a student passes in Mathematics, Physics and Chemistry are $$m, p$$ and $$c$$ respectively. Of th

A solution of the ordinary differential equation $$\,\,{{{d^2}y} \over {d{t^2}}} + 5{{dy} \over {dt}} + 6y = 0\,\,$$ is

In the following chopper, the duty ratio of switch $$S$$ is $$0.4.$$ If the inductor and capacitor are sufficiently larg

A buck converter feeding a variable resistive load is shown in the figure. The switching frequency of the switch $$S$$ i

A self commutating switch $$SW,$$ operated at duty cycle $$\delta $$ is used to control the load voltage as shown in the

The circuit shown is meant to supply a resistive load $${R_L}$$ from two separate $$DC$$ voltage sources. The switches $

The single-phase full-bridge voltage source inverter $$(VSI),$$ shown in figure, has an output frequency of $$50$$ $$Hz$

A 50 Hz generating unit has H-constant of 2 MJ/MVA. The machine is initially operating in steady state at synchronous sp

A sustained three phase fault occurs in the power system shown in the figure. The current and voltage phasors during the

Consider the economic dispatch problem for a power plant having two generating units. The fuel costs in $$Rs/MWh$$ along

Base load power plants are $$P.$$ wind farms $$Q.$$ run-of-river plants $$R.$$ nuclear power plants $$S.$$ diesel power

Determine the correctness or otherwise of the following Assertion (a) and the Reason (R). Assertion (A): Fast decoupled

Consider a $$HVDC$$ link which uses thyristor based line commutated converters as shown in the figure. For a power flow

A moving average function is given by $$y\left(t\right)=\frac1T\int_{t-T}^tu\left(\tau\right)d\tau$$. If the input u is

The impulse response g(t) of a system G, is as shown in Figure (a). What is the maximum value attained by the impulse re

The signum function is given by $$$\mathrm{sgn}\left(\mathrm x\right)=\left\{\begin{array}{l}\frac{\mathrm x}{\left|\mat

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 wo