(a) Specify the type of the negative feedback in the JFET amplifier shown in Fig. (b)Calculate the voltage gain (V0/Vi)

In case of class A amplifiers, the ratio (efficiency of transformer coupled amplifier)/(efficiency of a transformer less

In Fig. if the CMRR of the operational amplifier is 60dB, then the magnitude of the output voltage is

A rectangular pulse existing between t = 0 and t = T and having an amplitude A is to be received by a matched filter (

Companding in PCM systems leads to improved signal - to - quantization noise ratio. This improvement is for

White Gaussian noise is passed through a linear narrow band filter. The probability density function of the envelope of

The variance of a random variable X is $$\sigma _x^2\,.$$ Then the variance of - kx (where k is a positive constant ) is

In the signal flow graph shown in fig X2= TX1 where T is equal to

For the system shown in figure the transfer function $$\frac{\mathrm C\left(\mathrm s\right)}{\mathrm R\left(\mathrm s\r

The popular plot of G(s)=$${{10} \over {s{{\left( {s + 1} \right)}^2}}},$$ intercepts real axix at $$\omega = {\omega _

A system has fourteen poles and two zeroes. Its high frequency asymptote, in its magnitude plot, has having a slope of

The magnitude plot of the open loop transfer function G(s), of a certain system is given in fig, (a) Determine G(s), if

A system with derivative control is shown in figure. (a)Determine the transfer function and the characteristic equation

The subtraction of a binary number Y from another binary number X, done by adding the 2's complement of Y to X, result i

Fill in the blanks of the statements below concerning the following Logic Families: Standard TTL (74XX), Low power TTL(

Given that for a logic family, $${V_{OH}}$$ is the minimum output high-level voltage $${V_{OL}}$$ is the minimum outp

The circuit diagram of a 2 bit A to D converter is shown in figure below. The combinational logic is to be disigned to p

A 2-input up/down synchrconous counter using two toggle flip-flops is shown in Fig.1. The counter's sequence is to be co

A ripple counter using negative edge-triggered D-flip flops is shown in Fig.1. The flip-flops are cleared to '0' by a '0

Choose the correct statements relating to the circuit of figure

For an electromagnetic wave incident from one medium to a second medium, total reflection takes place when

A transmission line of pure resistive characteristic impedance is terminated with an unknown load. The measured value of

An electrostatic field is said to be conservative when

Two long parallel wires in free space are separated by a distance R and carry currents of equal magnitude but opposite i

An electric field is given by $$\overrightarrow E = \overrightarrow a {}_x\,{\rm A}\,\,\sin \,\beta ySin\,\,\omega t$$

The cut-off frequency of a waveguide depends upon

A thin dipole antenna is $$\left( {\lambda /15} \right)$$ long, where $$\lambda $$ is the voperating wavelength. If the

In an intrinsic semiconductor the free electron concentration depends on

The diffusion capacitance of a P-N junction

A square waveform as shown in the figure is applied across 1 mH ideal inductor.The current through the inductor is a tri

The impedance function of a parallel $$R$$, $$L$$, $$C$$ circuit has poles located at $$ - 3 \pm j4$$ rad/sec. If the

The value of current through the 1F capacitor of figure is.

Laplace transform of the functions t u(t) and u(t) sin(t) are respectively: