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GATE ECE 1988

Exam Held on Thu Jan 01 1970 00:00:00 GMT+0000 (Coordinated Universal Time)
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GATE ECE

Each transistor in the Darlington pair (see Fig. below) has h<sub>fe</sub> = 100...
The quiescent collector current I<sub>c</sub>, of a transistor is increased by c...
The amplifier circuit shown below uses a compostie transistor of a MOSFET and BI...
The transistor in the amplifier shown below has following parameters: $$${h_{fe...
The OP-AMP shown in fig. below is ideal. $$R\, = \,\sqrt {L/C.} $$ The phase ang...
The Op-Amp in the Fig below is ideal. Find the output when V<sub>i</sub> = (1-ex...
The transfer function of a zero - order hold is
The message bit sequence input to a DPSK modulator is 1, 1, 0, 0, 1, 1. The car...
White Gaussian noise with zero mean and double - sided power spectral density $$...
A signal having uniformly distributed amplitude in the interval ( -V, +V ) is to...
In a digital communication system, transmissions of successive bits through a no...
A critically damped, continuous-time, second order system, when sampled, will ha...
Consider a characteristic equation given by <br>s<sup>4</sup> + 3s<sup>3</sup> +...
Consider a closed-loop system shown in fig. (a) below. The root locus for it is ...
Minimum number of 2-input NAND gates required to implement the function, f=($$\o...
For the circuit shown below the output Fis given by <img class="question-image" ...
The minimum number of 2-input NAND gates required to implement the Boolean funct...
The Boolean function A+BC is a reduced form of
For the identity AB+$$\overline A $$ C + BC= AB + $$\overline A $$ C, The dual ...
Implement the function $$F=\left(\overline A+\overline B\right)\left(\overline C...
The circuit shown below uses TTL flip-flops. The flip-flops are triggered at the...
For the circuit shown in the figure below, sketch V<sub>0</sub> against time. As...
The circuit given below is a <img class="question-image" src="https://imagex.cdn...
In a good conductor the phase relation between the tangential components of elec...
A two - wire transmission line of characteristic impedance $$Z_0$$ is connected ...
Vector potential is a vector
On either side of a charge-free interface between two media,
For a normal mode EM wave propagating in a hollow rectangular wave guide
A rectangular waveguide with cross-section dimensions 5 cm by 3 cm is filled wit...
A rectangular waveguide with cross-section dimensions 5 cm by 3 cm is filled wit...
The electric field E and the magnetic field H of a short dipole antenna satisfy ...
For a microprocessor system using I/O-mapped I/O the following statement(s) is N...
A microprocessor with a 16-bit address bus is used in a linear memory selection ...
In register index addressing mode the effective address is given by
A 8bit $$\mu $$p has 16bit address bus. A 1KB memory chip is interfaced to proce...
<p>If an impedance Z<sub>L</sub> is connected across a voltage source V with sou...
The circuit shown below is initially in a steady state condition. At $$t = 0$$, ...
Two two-port networks are connected in parallel. The combination is to be repres...
The Laplace transform of a function f(t)u(t), where f(t) is periodic with period...
The transfer function of a zero-order hold is
Consider the system shown in the Fig.1 below. The transfer function $$Y\left( z...
The output of a system is given in difference equation form as $$y\left( k \righ...
Specify the filter type if its voltage transfer function H(s) is given by <p> H...
A signal containing only two frequency components (3 kHz and 6 kHz) is sampled a...
A signal x(t) = $$\exp ( - 2\pi Bt)\,u(t)$$ is the input to an ideal low pass fi...

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