Recent questions tagged gate1994-ec

The Laplace transform of a unit ramp function starting at $t=a$, is$\frac{1}{(s+a)^{2}}$$\frac{e^{-as}}{(s+a)^{2}}$$\frac{e^{-as}}{s^{2}}$$\frac{a}{s^{2}}$

The Fourice Series of a odd periọdic function, contains onlyodd harmonicseven harmonicscosine termssine terms

A series $\text{LCR}$ circuit consisting of $R=10 \; \Omega$, $\left|X_{L}\right|=20 \; \Omega$ and $\left|X_{C}\right|=20 \; \Omega$, is connected across an $a . c$. sup...

A ramp voltage, $v(t)=100$ volts, is applied to an $R C$ differentiating circuit with $R=5 \; \mathrm{k} \Omega$ and $C=4$ $\mu \mathrm{F}$. The maximum output voltage is...

The $3-d \mathrm{B}$ bandwidth of a typical second-order system with the transfer function$\frac{\mathrm{C}(s)}{\mathrm{R}(s)}=\frac{w_{n}^{2}}{s^{2} \mathrm{t}+2 x w_{n}...

If the open-loop transfer function is a ratio of a numerator polynomial of degree ' $m$ ' and a denominator polynomial of degree '$n$', then the integer $(n-m)$ represent...

A small concentration of minority carries is injected into a homogeneous semiconductor crystal at one point. An electric field of $10 \mathrm{~V} . \mathrm{cm}$ is applie...

The threshold voltage of an $n$ channel $\text{MOSFET}$ can be increased byincreasing the channel dopant concentrationreducing the channel dopant concentrationreducing th...

A class - A transformer coupled, transistor power amplifier is required to deliver a power output of $10$ watts. The maximum power rating of the transistor should not be ...

Data can be changed from spatial code to temporal code and vice-versa by using$\text{ADC}$s and $\text{DAC}$sshift-registerssynchronous counterstimers

The output of a logic gate is ‘$1$’ when all its inputs are at logic ‘$0$’. Then gate is eithera $\text{NAND}$ or an $\text{EX-OR}$ gatea $\text{NOR}$ or an $\text{EX-NOR...

A $\text{PLA}$ can be usedas a microprocessoras a dynamic memoryto realise a sequential logicto realise a combinational logic

A dynamic $\text{RAM}$ consists of$6$ transistors$2$ transistors and $2$ capacitors$1$ transistor and $1$ capacitor$2$ capacitors only

$v(t)=5[\cos (106 \; \pi t)-\sin (103 \; \pi t) \times \sin (106 \; \pi t)$ represents$\text{DSB}$ suppressed carrier signal$\text{AM}$ signal$\text{SSB}$ upper sideband ...

Increased pulse-width in the flat-top sampling, leads toattenuation of high frequencies in reproductionattenuation of low frequencies in reproductiongreater aliasing erro...

Medium wave radio signals may be received at far off distances at night becauseradio waves travel faster at nightground wave attenuation is low at nightthe sky wave is st...

For a short wave radio link between two stations via the ionosphere, the ratio of the maximum usable frequency to the critical frequencyis always less than $1$is always g...

A plane eelctromagnetic wave travelling along $+z$ – direction, has its electric field given by$\mathrm{E}_{x}=2 \cos \left({ }^{*} t\right)$ and $\mathrm{E}_{y}=2 \cos \...

For a dipole antennathe radiation intensity is maximum along the normal to the dipole axisthe current distribution along its length is uniform irrespective of the lengtht...

$ \quad f_{c} \vec{A} \cdot d \vec{t} =\int_{s} -. d \vec{s}$

The rank of an $(m \times n)$ matrix $(m < n)$ cannot be more than __________.

The condition that a $z$-port network is reciprocal, can be expressed in terms of its $\mathrm{ABCD}$ parameters as _________.

A generator of internal impedance, $Z_{\mathrm{G}^{\prime}}$ deliver maximum power to a load impedance, $Z_{I^{\prime}}$ only if $Z_{I^{\prime}}=$ _________.

The open loop frequency response of a system at two particular frequencies are given by : $1.2 \; \angle \; 180^{\circ}$ and $1.0 \; \angle \; -190^{\circ}$.The closed lo...

The poles of a continuous time oscillators are ___________.

The forward dynamic resistance of a junction diode varies ________ as the forward current.

The transit time of the current carriers through the channel of an $\text{FET}$ decides its _________ chracteristics.

In order to reduce the harmonic distortion in an amplifier, its dynamic range has to be ___________.

A common emitter transistor amplifier has a cullector corrent of $1.0 \mathrm{~mA}$ when its base current is $25 \; \mu \mathrm{A}$ at the room temperature. It's input re...

For the $2 \mathrm{N} \; 338$ transistor, the manufacturer specifics $\mathrm{P}_{\max }=100 \mathrm{~mW}$ at $25^{\circ} \mathrm{C}$ free-air temperature and the maximum...