List of top Electronics and Communication Engineering Questions asked in AP PGECET

What is the fundamental angular frequency in rad/sec for the given waveform?
fundamental angular frequency in rad/sec
If \( x[n] = \{1, 0, -2, 3\} \) and \( y[n] = x[n] \ast x[n] \), the maximum value of \( y[n] \) is
What are the conditions called which are required for a signal to fulfill to be represented as Fourier series?
The primary function of a clamper circuit is
What is the period of the following signal, \( x(t) = \sin(18\pi t + 78^\circ) \)?
A PAM signal can be detected by using
A function \( x(t) \) is said to have half-wave odd symmetry if
The impulse response of a continuous time system is given by \( h(t) = \delta(t - 1) + \delta(t - 3) \). The value of the step response at \( t = 2 \) is
The number of memory cycles required to execute the following 8085 instructions
I. STA 3000 H
II. LXI D, 3000 H
For a square wave signal with a frequency of 10 KHz, calculate the output frequencies for Mod 2, Mod 4, and Mod 10 counters.
\( A + A.B + A.B.C + A.B.C.D \) simplifies to
The minimum number of comparators required to build an eight-bit flash ADC is
A 10-bit successive approximation type A/D converter has quantization error of 10 mV. The digital output corresponding to an analog input of 4.365 V would be
The logic function implemented by the circuit shown in the Figure below is (ground implies a logic '0')
logic function implemented
The logic circuit shown in Figure below is a
logic circuit
How to achieve 50\% duty cycle in adjustable rectangular wave generator? (Assume \( R_1 \) is Resistor connected between supply and discharge and \( R_2 \) is Resistor connected between discharge and trigger input.)
Which of the following circuit is used as a special signal to demultiplex the address bus and data bus?
The number of memory cycles required to execute the 8085 instruction LDA 3000 H is
The POS form is suitable for circuits using
Simplify the following expression with A, B, C three variables, \( F(A, B, C) = \Sigma(1, 3, 5, 7) \)
An amplifier has \( A_v = 1000 \pm 100 \). Determine the feedback needed to keep the gain within \( \pm 10\% \).
The decimal equivalent of \( (101111.1101)_2 \) is
A negative going trigger pulse is applied to pin 2 of the IC 555 timer, passes through the threshold level of
Which of the following statements are true?
P: JFET is biased to operate it in active region
Q: MOSFET is biased to operate it in saturation region
In the silicon BJT circuit shown below, assume that emitter area of transistor Q1 is half that of transistor Q2, then what is the value of the current \( I_o \) is approximately
silicon BJT circuit