The modes in a rectangular waveguide are denoted by TE_{mn}/TM_{mn} where m and n are the eigen numbers along the larger and smaller dimensions of the waveguide respectively. Which one of the following statements is TRUE?
The Column-1 lists the attributes and the Column-2 lists the modulation systems. Match the attribute to the modulation system that best meets it
The differential equation $100\frac{{d}^{2}y}{d{t}^{2}}-20\frac{dy}{dt}+y=x\left(t\right)$ describes a system with an input x(t) and an output y(t). The system, which is initially relaxed, is excited by a unit step input. The output y(t) can be represented by the waveform
For the transfer function $G\left(\mathrm{j\omega}\right)=5+\mathrm{j\omega},$ the corresponding Nyquist plot for positive frequency has the form
The trigonometric Fourier series of an even function does not have the
When the output Y in the circuit below is "1", it implies that data has
The logic function implemented by the circuit below is (ground implies a logic "0")
The circuit below implements a filter between the input current i_{i} and the output voltage v_{o}. Assume that the opamp is ideal. The filter implemented is a
A silicon PN junction is forward biased with a constant current at room temperature. When the temperature is increased by 10^{o}C, the forward bias voltage across the PN junction
In the circuit shown below, the Norton equivalent current in amperes with respect to the terminals P and Q is
In the circuit shown below, the value of R_{L} such that the power transferred to R_{L} is maximum is
The value of the integral $\underset c{\oint\;}\frac{-3z+4}{\left(z^2+4z+5\right)}dz$ where c is the circle $\left|z\right|=1$ is given by
A transmission line of characteristic impedance 50Ω is terminated by a 50 Ω load. When excited by a sinusoidal voltage source at 10GHz, the phase difference between two points spaced 2mm apart on the line is found to be π/4 radians. The phase velocity of the wave along the line is
Consider the following statements regarding the complex Poynting vector $\overrightarrow{P}$ for the power radiated by a point source in an infinite homogeneous and lossless medium. Re$\left(\overrightarrow{P}\right)$ denotes the real part of $\overrightarrow{P}$, S denotes a spherical surface whose centre is at the point source, and $\hat{n}$ denotes the unit surface normal on S. Which of the following statements is TRUE?
(C)
An analog signal is band-limited to 4 kHz, sampled at the Nyquist rate and the samples are quantized into 4 levels. The quantized levels are assumed to be independent and equally probable. If we transmit two quantized samples per second, the information rate is
The root locus plot for a system is given below. The open loop transfer function corresponding to this plot is given by
A system is defined by its impulse response h(n) = 2^{n} u(n − 2). The system is
If the unit step response of a network is ${\left(1-{e}^{-\alpha t}\right)}^{}$ then its unit impulse response is
The output Y in the circuit below is always "1" when
In the circuit shown below, capacitors C_{1} and C_{2} are very large and are shorts at the input frequency. v_{i} is a small signal input. The gain magnitude |v_{o}/v_{i}| at 10Mrad/s is