Recent questions tagged gate2003-ec

The minimum number of equations required to analyze the circuit shown in the figure is$3$$4$$6$$7$

A source of angular frequency $1 \; \mathrm{rad} / \mathrm{sec}$ has a source impedance consisting of $1 \Omega$ resistance in series with $1 \; \mathrm{H}$ inductance. T...

A series $\text{RLC}$ circuit has a resonance frequency of $1 \; \mathrm{kHz}$ and a quality factor $\text{Q}=100$. If each of $\text{R, L}$ and $\text{C}$ is doubled fro...

The Laplace transform of $i(t)$ is given by $$ I(s)=\frac{2}{s(1+s)} $$ As $t \rightarrow \infty$, the value of $i(t)$ lends to$0$$1$$2$$\infty$

The differential equation for the current $i(t)$ in the circuit of the figure is$2 \frac{d^2 i}{d t^2}+2 \frac{d i}{d t}+i(t)=\sin t$$\frac{d^2 i}{d t^2}+2 \frac{d i}{d t...

$n$-type silicon is obtained by doping silicon withGermaniumAluminiumBoronPhosphorus

The bandgap of silicon at $300 \mathrm{~K}$ is$1.36 \; \mathrm{eV}$$1.10 \; \mathrm{eV}$$0.80 \; \mathrm{eV}$$0.67 \; \mathrm{eV}$

The intrinsic carrier concentration of silicon sample at $300 \mathrm{~K}$ is $1.5 \times 10^{16} / \mathrm{m}^3$. If after doping, the number of majority carriers is $5 ...

Choose proper substitutes for $\mathrm{X}$ and $\mathrm{Y}$ to make the following statement correct Tunnel diode and Avalanche photodiode are operated in $\mathrm{X}$ bia...

For an $n$-channel enhancement type MOSFET, if the source is connected at a higher potential than that of the bulk (i.e. $V_{SB}>0$ ), the threshold voltage $V_T$ of the ...

Choose the correct match for input resistance of various amplifier configurations shown below$\begin{array}{ll}\text { Configuration } & \text { Input resistance } \\ \te...

The circuit shown in the figure is best described as abridge rectifierring modulatorfrequency discriminatoryvoltage doubler

If the input to the ideal comparator shown in the figure is a sinusoidal signal of $8 \mathrm{~V}$ (peak to peak) without any DC component, then the output of the compara...

If the differential voltage gain and the common mode voltage gain of a differential amplifier are $48 \mathrm{~dB}$ and $2 \mathrm{~dB}$ respectively, then its common mod...

Generally, the gain of a transistor amplifier falls at high frequencies due to theinternal capacitances of the devicecoupling capacitor at the inputskin effectcoupling ca...

The number of distinct Boolean expressions of $4$ variables is$16$$256$$1024$$65536$

The minimum number of comparators required to build an $8$ bit flash ADC is$8$$63$$255$$256$

The output of the $74$ series of $\text{TTL}$ gates is taken from a $\text{BJT}$ intotem pole and common collector configurationeither totem pole or open collector config...

Without any additional circuitry, an $8: 1 \; \mathrm{MUX}$ can be used to obtainsome but not all Boolean functions of $3$ variablesall functions of $3$ variables but non...

A $0$ to $6$ counter consists of $3$ flip flops and a combination circuit of $2$ input gate(s). The combination circuit consists ofone AND gateone OR gateone AND gate and...

The Fourier series expansion of a real periodic signal with fundamental frequency $\mathrm{f}_0$ is given by $$ g_p(t)=\sum_{n=-\infty}^{\infty} c_n e^{j 2 \pi n f_\omega...

Let $x(t)$ be the input to a linear, time-invariant system. The required output is $4 x(t-2)$. The transfer function of the system should be$4 e^{j4 \pi f}$$2 e^{-j8 \pi ...

A sequence $x(n)$ with the z-transform $X(z)=z^4+z^2-2 z+2-3 z-4$ is applied as an input to a linear, time-invariant system with the impulse response $h(n)=2 \delta(n-3)$...

The figure shows the Nyquist plot of the open-loop transfer function $\mathrm{G}(\mathrm{s}) \mathrm{H}(s)$ of a system. If $\mathrm{G}(s) \mathrm{H}(\mathrm{s})$ has one...

A PD controller is used to compensate a system. Compared to the uncompensated system, the compensated system hasa higher type numberreduced dampinghigher noise amplificat...

The input to a coherent detector is DSB-SC signal plus noise. The noise at the detector output isthe in-phase componentthe quadrature-componentzerothe envelope

The noise at the input to an ideal frequency detector is white. The detector is operating above threshold. The power spectral density of the noise at the output israised-...

At a given probability of error, binary coherent $\text{FSK}$ is inferior to binary coherent $\text{PSK}$ by$6 \mathrm{~dB}$$3 \mathrm{~dB}$$2 \mathrm{~dB}$$0 \mathrm{~dB...

The unit of $\nabla \times \mathrm{H}$ isAmpereAmpere/meterAmpere/meter ${ }^{2}$Ampere-meter

The depth of penetration of electromagnetic wave in a medium having conductivity $\sigma$ at a frequency of $1 \; \mathrm{MHz}$ is $25 \mathrm{~cm}$. The depth of penetra...