A common-emitter amplifier with an external capacitor CC connected across the base and the collector of the transistor i

A Darlington stage is shown in the figure, if the transconductance of q1 is gm1 and q2 is gm2, then the overall transcon

Match the following. Group - I (a)Cascode amplifier (b)Differential Amplifier (c)Darlington pair common-collector Amplif

An npn transistor has a beta cut-off frequency $${f_\beta }$$ of 1MHz and Common Emitter short circuit low frequency cur

In the circuit shown in Fig. is a finite gain amplifier with a gain of K, a very large input impedance, and a very low o

A JEFT with VP = -4V and IDss = 12mA is used in the circuit shown in Fig. Assuming the device to be operating in satu

Value of R in the oscillator shown in the given figure. So chosen that it just oscillates at an angular frequencies of'

The circuit shown in the figure is that of

The number of bits in a binary PCM system is increased from n to n+1. As a result, the signal to quantization noise rat

A system having an open loop transfer function $$G\left(s\right)=\frac{K\left(s+3\right)}{s\left(s^2+2s+2\right)}$$ is u

Obtain a state space representation in diagonal form for the following system $$${{{d^3}y} \over {d{t^3}}} + 6{{{d^2}y}

Given the Boolean function F in three variables R, S and T as F=$$\,\overline R \,S\overline T + R\overline {S\,} T +

Its is desired to generate the following three Boolean functions. $$\eqalign{ & {F_1} = a\,\overline b \,c + \ove

Each cell of a static Random Access Memory Contains

A 12-bit ADC is operating with a 1$$\mu $$ sec clock period and the total conversion time is seen to be 14 $$\mu $$ sec.

A 4-bit shift register, which shifts 1 bit to the right at every clock pulse, is intialized to values (1000) for (Q0Q1Q2

A state machine is required to cycle through the following sequence of states: One possible implementation of the stat

Some unknown material has a conductivity of $${10^{ 6}}$$ $$mho/m$$ and a permeability of $$4\pi \times {10^{ - 7}}\,

A lossless transmission line having 50 $$\Omega $$ characteristic impedance and lenght $$\lambda /4$$ is short ciruited

The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and $$Z_0$$ respe

A uniform plane wave in air is normally incident on an infinitely thick slab. If the reflective index of the glass slab

A metal sphere with 1 m radius and a surface charge density of 10 Coulombs/m2 is enclosed in a cube of 10 m side. The

A uniform plane wave having parallel polarization is obliquely incident on an air - dielectric interface as shown in Fig

A transverse electromagnetic wave with circular polarization is received by a dipole antenna. Due to polarization mismat

A 1 km long microwave link uses two antennas each having 30dB gain. If the power transmitted by one antenna is 1 W at 3

In an air-filled rectangular waveguide, the vector electric field is given by $$\mathop E\limits^ \to = \cos \,(20\,\

Two isotropic antennas A and B from an array as shown in Fig. The currents fed to the two antennas are $${{\rm I}_0}\,\a

The inverse laplace transform of the function $${{s + 5} \over {\left( {s + 1} \right)\left( {s + 3} \right)}}$$ is ____

The following sequence of instructions are executed by an 8085 microprocessor: 1000: LXI SP< 27FF 1003: CALL 1006

The total number of memory accesses involved (inclusive of the op-code fetch) when an 8085 processor executes, the instr

In Fig., A1, A2 and A3 are ideal ammeters. If A2 and A3 read 3 A and 4 A respectively, then A1 should read

In the circuit of Fig., assume that the diodes are ideal and the meter is an average indicating ammeter. The ammeter wil

Find the input resistance $${R_{in}}$$ of the infinite section resistive network shown in Fig.

The open circuit impedance matrix $${Z_{OC}}$$ of a three-terminal two-port network with A as the input terminal, B as t

The voltage VC1, VC2 and VC3 across the capacitors in the circuit in Fig., under steady state, are respectively

The number of independent loops for a network with n nodes and b branches is

Refer to the circuit shown in Fig. Choosing the voltage vC(t) across capacitor, and the current iL(t) through the induc

In the circuit shown in Fig (a) - (c), assuming initial voltages across capacitors and current through the inductors to

In the circuit shown in Fig., it is known that the variable current source I absorbs power.Find I (in magnitude and dire

The inverse Laplace transform of the function $${{s + 5} \over {\left( {s + 1} \right)\left( {s + 3} \right)}}$$ is

The autocorrelation function of an energy signal has

A system having a unit impulse response $$h\left( n \right)$$ = $$u\left( n \right)$$ is excited by a signal $$x\lef

In the linear time-invariant system shown in Fig. 1, blocks labeled D represent unit delay elements. Find the expression

A rectangular pulse of duration T is applied to a filter matched to this input. The output of the filter is a

A signal 3 sin $$\left( {\pi \,\,{f_0}t} \right) + \,5\,\,\cos \,\,\,(3\pi \,\,{f_0}t)$$ is applied to an RC low pass fi

An input signal A exp $$\left( { - \alpha \,t} \right)$$ u(t) with $$\alpha > 0$$ is applied to a causal filter, the

The Fourier transform of a real valued time signal has

The trigonometric Fourier series of an even function of time does not have the