Recent questions tagged gate1993-ec

In an electron diffraction experiment, planes of a crystal with spacing $1 \mathrm{~A}^{\circ}$ between them yield the first maximum at a Bragg angle of $\theta=30^{\circ...

A light beam of frequency $1.2 \times 10^{15} \mathrm{~Hz}$ is incident on a metal in a photoelectric effect experiment. The corresponding maximum kinetic energy of the e...

Consider the semiconductors $\mathrm{A}$ and $\mathrm{B}$. The figure shows variation of $\ln p$ with $I / T$, where $p$ is resistivity and $\mathrm{T}$ the temperature, ...

A $dc$ circuit shown in the figure is has a voltage source $\text{V}$, a current source $I$ and several resistors. A particular resistor $\mathrm{R}$ dissipates a power o...

In the series circuit shown in figure for series resonance, the value of the coupling coefficient $K$ will be$0.25$$0.5$$0.999$$1.0$

If the secondary winding of the ideal transformer shown in the circuit of Fig. $4.3.$ has $40$ turns, the number of turns in the primary winding for maximum power transfe...

For the amplifier circuit of the figure is the transistor a $\mathrm{B}$ of $800$ . The midband voltage gain $\mathrm{V}^{0} / \mathrm{V}^{1}$, of the circuit will be$0$$...

The waveshape of $\mathrm{V}^{0}$ in the figure will be

For the logic circuit shown in the figure is the output $Y$ is equal to$\overline{\mathrm{ABC}}$$\overline{\mathrm{A}}+\overline{\mathrm{B}}+\overline{\mathrm{C}}$$\overl...

In the figure, is in ideal moving iron voltmeter $M$ will read$7.07 \mathrm{~V}$$12.24 \mathrm{~V}$$14.14 \mathrm{~V}$$20.0 \mathrm{~V}$

A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then the voltage across each resistor ishalveddoubledincreased ...

The two electrical sub network $N^{1}$ and $N^{2}$ are connected through three resistors as shown in the figure. The voltage across $5 \; \mathrm{ohm}$ resistor and $1 \;...

In the figure is $\mathrm{A}^{1} \mathrm{~A}^{2}$ and $\mathrm{A}^{3}$ are ideal ammeters. If $\mathrm{A}^{1}$ reads $5 \mathrm{A}, \mathrm{~A}^{2}$ reads $12 \mathrm{A}$...

If $\tau \mathrm{F}(\mathrm{s})=[f(t)]=\frac{\mathrm{K}}{(\mathrm{s}+1)\left(\mathrm{s}^{2}+4\right)}$ then $\lim _{t \rightarrow \infty} f(t)$ is given by$\mathrm{K} / 4...

If $s^{3}+3 s^{2}+4 s+A=0$, then all the roots of this equation are in the left half plane provided that$\mathrm{A}>12$$-3<\mathrm{A}<4$$0<\mathrm{A}<12$$5<\mathrm{A}<12$

$\alpha$ - cut off frequency of a bipolar junction transistorincreases with the increase in base widthincreases with the increase in emitter widthincreases with increase ...

Negative feedback in amplifiersimproves the signal to noise ratio at the inputimproves the signal to noise ratio at the outputdoes not affect the signal to noise ratio at...

In a multi-stage $\text{R-C}$ coupled amplifier the coupling capacitorlimits the low frequency responselimits the high frequency responsedoes not affect the frequency res...

The bandwidth of an $n$-stage tuned amplifier, with each stage having a band width of $B$, is given by$\mathrm{B} / n$$\mathrm{B} / \sqrt{n}$$\mathrm{B} \sqrt{2^{1 / n}-1...

In a transistor push-pull amplifierthere is no $d.c.$ present in the outputthere is no distortion in the outputthere are no even harmonics in the outputthere are no odd h...

$2$'s complement representation of a $16$ – bit number (one sign bit and $15$ magnitude bits) is $\text{FFFI}$. Its magnitude in decimal representation is$0$$1$$32,767$$6...

Boolean expression for the output of $\text{XNOR}$ (Equivalent) logic gate with inputs $A$ and $B$ is$\mathrm{A} \overline{\mathrm{B}}+\overline{\mathrm{A}} \mathrm{B}$$\...

Consider the circuit shown in the figure is If the diode used here has the V-I characteristic as in the figure is then the output waveform $v^{0}$ is

A pulse train with a frequency of $1 \; \mathrm{MHz}$ is counted using a modulo $1024$ ripple-counter built with $\text{JK}$ flip flops. For proper operation of the count...

In a microprocessor, the register which holds the address of the next instruction to be fetched isAccumulatorProgram CounterStack PointerInstruction Registor

In a microcomputer, wait states are used tomake the processor wait during a $\text{DMA}$ operationmake the processor wait during an interrupt processingmake the processor...

The function shown in figure, can represent a probability density function for $\mathrm{A} \dots$

Which of the following demodulator(s) can be used for demodulating the signal $x(t)=5(1+2 \cos 2000 \pi t) \cos 2000 \pi t .$Envelope demodulatorSquare-law demodulatorSyn...

A superheterodyne radio receiver with an intermediate frequency of $455 \; \mathrm{KHz}$ is tuned to a station operating at $1200 \; \mathrm{KHz}$. The associated image f...

Sketch the waveform (with properly markedaxes) at the output of a matched filter matched for a signal $S(t)$, of duration $T$, given by $$ S(t)= \begin{cases}\text { A } ...