List of top Electronics and Communication Engineering Questions asked in Andhra Pradesh Post Graduate Engineering Common Entrance Test

If carrier and modulating frequency are 100 kHz and 5 kHz respectively, the bandwidth of AM transmission will be _______.
In a simple RC high-pass filter, the desired roll-off frequency is 15 Hz and \(C = 10\ \mu F\). The value of \(R\) would be _______.
The maximum power efficiency of an AM modulator is _______.
For the SOP expression $A\overline{B}C + \overline{A}BC + AB\overline{C}$, how many 1s are in the truth table’s output column?
The envelope detector is a/an _______.
Changes in temperature will affect the level of _______.
The medium which reflects high frequency radio waves back to the earth’s surface is called _______.
The binary code of $(21.125)_{10}$ is _______.
As per Boolean algebra, (A + B)(A + C) = _______.
An FM signal having a modulation Index of $M$ is passed through a frequency tripler. The FM signal at the output of tripler will have a modulation index of _______.
One example of the use of an S-R flip-flop is
The circuit shown in Figure is equivalent to a load of
Figureisequivalenttoaloadof
In QAM, both ______ of a carrier frequency are varied.
The following multiplexer gives the logic gate of a/an _____
multiplexer gives the logic gate
How many minimum number of flip-flops are required to make a mod-479 counter?
_____ is used for the removal of SiO2 from desired regions such that the desired impurities can be diffused.
The characteristic equation of JK flip-flop is ______
The number of flip-flops used in a decade counter is _____
The purpose of using a transmission line segment with a length of \( \lambda/4 \) in impedance matching is
The primary advantage of using a rectangular waveguide over other transmission line types is
Fundamental principle behind the propagation of light in dielectric waveguides and optical fibers is
What is the radiation pattern of a point source antenna in free space?
In a transmission line with a characteristic impedance \( Z_0 \), what happens if the load impedance \( Z_L \) matches \( Z_0 \)?
Which one of the following field patterns represents a TEM wave traveling in the positive \( z \)-direction?
Which of the following assertions accurately describes Gauss's theorem?