List of top Electronics and Communication Engineering Questions

The program counter in a computer is a special purpose register which contains

8051 series has how many 16-bit registers?

What is the state of carry, auxiliary carry and parity flags after execution of following instructions: MOV A, #3F
ADD A, #BE

One megabyte is equivalent to

For emitter coupled logic the switching speed is very high because

The main advantage of CMOS over TTL circuit is its

The figure of merit of a logic family is given by

Which element of JK flip-flop operates in toggle mode when clock pulse is applied?

Minimum number of comparators needed to handle a 64 channel A/D converter is

A 10-bit ADC has a range of \(0\text{–}5V\), the resolution of the ADC is approximately

Which system allows the entire bandwidth available to each user at the same time?

Which type of gate is shown in the figure?

The dominant mode in a rectangular waveguide is

Full adder can be implemented by

What is dual of \(A + B(AC) + D\)?

NAND gate with positive logic will operate as

In a fibre optic system the source and detector respectively are

Which of the following RADAR cannot be used for range measurement?

A scope in RADAR system displays

Mean effective aperture of a \(\lambda/2\) dipole is

The standard reference antenna for the directive gain is the

Which of the following is a travelling wave?

The spectral density of White noise is

A Reflex Klystron oscillator uses

Wire guide may be considered as