List of top Questions asked in AP ECET ECE- 2025

A 10-bit ADC has a range of \(0\text{–}5V\), the resolution of the ADC is approximately
Which type of gate is shown in the figure?
The dominant mode in a rectangular waveguide is
What is dual of \(A + B(AC) + D\)?
Which system allows the entire bandwidth available to each user at the same time?
NAND gate with positive logic will operate as
Full adder can be implemented by
The standard reference antenna for the directive gain is the
Which of the following RADAR cannot be used for range measurement?
Mean effective aperture of a \(\lambda/2\) dipole is
A scope in RADAR system displays
In a fibre optic system the source and detector respectively are
The spectral density of White noise is
Which of the following is a travelling wave?
Wire guide may be considered as
A Reflex Klystron oscillator uses
Long distance short wave radio broadcasting uses
For M-ary PSK, the signal constellation is
A capacitor of \(0.5\,\mu F\) is used to tune a signal of \(200\,kHz\). The tuning frequency is
In a commercial FM broadcasting the maximum frequency deviation is
The data rate of a binary signal with a bit time 11.5 microseconds is
The modulation method that represents bits as different phase shifts of a carrier is
The Nyquist sampling rate for a signal band limited to \(4\,kHz\) is
An AM wave is given by \(C(t)=10[1+0.4\cos(10^4 t)+0.3\cos(10^5 t)]\cos(10^6 t)\). The modulation index of the envelope is
The envelope detector is