Home / MCQ Bank / Electronics and Communication

Electronics and Communication Network Theory And Analysis Difficulty: Medium

Estimate RMS pulse broadening per km due to intermodal dispersion for multimode step index fiber where length of fiber is 4 km and pulse broadening per km is 80.6 ns. An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are Which of the following is an example of local wireless system? Select correct answer- A 400 W carrier is modulated to a depth of 75%. Calculate the total power in the modulated wave. A Boolean function f of two variables x and y is defined as follows: f(0, 0) = f(0, 1) = f(1, 1) = 1; f(1, 0) = 0 Assuming complements of x and y are not available, a minimum cost solution for realizing f using only 2-input NOR gates and 2-input OR gates (each having unit cost) would have a total cost of