An operational-amplifier circuit is shown in the figure. The output of the circuit for a given input $${V_i}$$ is

A hysteresis type $$TTL$$ inverter is used to realize an oscillator in the circuit shown in the figure. If the lower a

The transfer characteristic of the Op-amp circuit shown in figure is

The signal flow graph of a system is shown below. $$U(S)$$ is the input and $$C(S)$$ is the output. Assuming $${h_1} =

The block diagram of a system is shown in the figure If the desired transfer function of the system is $${{C\left( s \

A single-input single-output feedback system has forward transfer function $$𝐺(𝑠)$$ and feedback transfer function $$�

The magnitude Bode plot of a network is shown in the figure The maximum phase angle $${\phi _m}$$ and the correspondin

Consider the system described by the following state space equations $$$\eqalign{ & \left[ {\matrix{ {{x_1}}

Two monoshot multivibrators, one positive edge triggered $$\left( {{M_1}} \right)$$ and another negative edge triggered

A $$3$$-bit gray counter is used to control the output of the multiplexer as shown in the figure. The initial state of t

A state diagram of a logic gate which exhibits a delay in the output is shown in the figure, where $$X$$ is the don't ca

In $$8085A$$ microprocessor, the operation performed by the instruction $$LHLD$$ $${2100_H}$$ is

The power delivered by the current source, in the figure, is ________ W.

The Norton’s equivalent source in amperes as seen into the terminals X and Y is _______.

A non-ideal voltage source VS has an internal impedance of ZS. If a purely resistive load is to be chosen that maximizes

A series RLC circuit is observed at two frequencies. At $$\omega_1$$ = 1k rad / s, we note that source voltage $$V_1=100

The line A to neutral voltage is $$10\angle15^\circ\;V$$ for a balanced three phase star-connected load with phase seque

The driving point impedance Z(s) for the circuit shown below is

A periodic waveform observed across a load is represented by $$$V\left( t \right) = \left\{ {\matrix{ {1 + \sin \,\o

In the bridge circuit shown, the capacitors are loss free. At balance, the value of capacitance C1 in microfarad is ____

An $$LPF$$ wattmeter of power factor $$0.2$$ is having three voltage settings $$300V,$$ $$150V$$ and $$75V,$$ and two cu

The two signals $$S1$$ and $$S2,$$ shown in figure, are applied to $$Y$$ and $$X$$ deflection plates of an oscilloscope

The no-load speed of a 230 V separately excited dc motor is 1400 rpm. The armature resistance drop and the brush drop ar

A separately excited 300 V DC shunt motor under no load runs at 900 rpm drawing an armature current of 2 A. The armature

The parameters measured for a 220V/110V, 50 Hz, single-phase transformer are: Self inductance of primary winding = 45 mH

The mean thickness and variance of silicon steel laminations are 0.2 mm and 0.02 respectively. The varnish insulation is

An open circuit test is performed on 50 Hz transformer, using variable frequency source and keeping V/f ratio constant,

The load shown in the figure absorbs 4 kW at a power factor of 0.89 lagging. Assuming the transformer to be ideal, the

A single phase induction motor is provided with capacitor and centrifugal switch in series with auxiliary winding. The s

The torque-speed characteristics of motor ($$T_M$$) and load ($$T_L$$) for two cases are shown in the figures (a) and (b

In a synchronous machine, hunting is predominantly damped by

A non-salient pole synchronous generator having synchronous reactance of $$0.8$$ $$pu$$ is supplying $$1$$ $$pu$$ power

A hollow metallic sphere of radius r is kept at potential of 1 Volt. The total electric flux coming out of the concentri

A perfectly conducting metal plate is placed in x-y plane in a right handed coordinate system. A charge of $$+32{\mathrm

$$A = \left[ {\matrix{ p & q \cr r & s \cr } } \right];B = \left[ {\matrix{ {{p^2} + {q^2}} &

A particle, starting from origin at $$t=0$$ $$s,$$ is traveling along $$x$$-axis with velocity $$v = {\pi \over 2}\cos

Let $$\,\,\nabla .\left( {fV} \right) = {x^2}y + {y^2}z + {z^2}x,\,\,$$ where $$f$$ and $$V$$ are scalar and vector fiel

Lifetime of an electric bulb is a random variable with density $$f\left( x \right) = k{x^2},$$ where $$x$$ is measured

The function $$f\left( x \right) = {e^x} - 1\,\,$$ is to be solved using Newton $$-$$ Raphson method. If the initial val

Integration of the complex function $$f\left( z \right) = {{{z^2}} \over {{z^2} - 1}},$$ in the counterclockwise directi

A three-phase fully controlled bridge converter is fed through star-delta transformer as shown in the figure. The conv

A diode circuit feeds an ideal inductor as shown in the figure. Given $${V_s} = 100\,\,\sin \,\left( {\omega t} \right)V

A single - phase voltage source inverter shown in figure is feeding power to load. The triggering pulses of the devices

In a long transmission line with $$r, l, g$$ and $$𝑐$$ are the resistance, inductance, shunt conductance and capacitanc

For a $$400$$ $$km$$ long transmission line, the series impedance is $$(0.0 + j0.5)$$ $$\Omega /km$$ and the shunt admit

The complex power consumed by a constant-voltage load is given by $$\left( {{P_1} + {J_{q1}}} \right).\,\,$$ Where, $$\,

The figure shows the single line diagram of a single machine infinite bus system. The inertia constant of the synchron

For a fully transposed transmission line

A 183-bus power system has 150PQ buses and 32 PV buses. In the general case, to obtain the load flow solution using Newt

A function f(t) is shown in the figure. The Fourier transform F($$\mathrm\omega$$) of f(t) is

A signal is represented by $$$x\left(t\right)=\left\{\begin{array}{l}1\;\;\;\left|t\right|\;<\;1\\0\;\;\;\left|t\righ

A differentiable non constant even function x(t) has a derivative y(t), and their respective Fourier Transforms are X($$

For the signal f(t) = 3 sin8$$\mathrm\pi$$t + 6sin12$$\mathrm\pi$$t + sin14$$\mathrm\pi$$t, the minimum sampling frequen

A sinusoid x(t) of unknown frequency is sampled by an impulse train of period 20 ms. The resulting sample train is next

A continuous-time LTI system with system function H($$\omega$$) has the following pole-zero plot. For this system, which