ISRO Scientist or Engineer Electronics Dec 2017

Instructions

For the following questions answer them individually

Question 61

The electric field of a linearly polarized electromagnetic wave is given by $$E_{i}=\hat{a_{x}}E_{o}(x,y)e^{-jkz}$$ is incident upon a linearly polarized antenna whose electric field polarization is expressed as $$E_{a}=(\hat{a_{x}}+\hat{a_{y}}) E(r,\theta,\phi)$$.Find the polarization loss factor.

Video Solution
Question 62

A lossless T-junction two way power divider has a source impedance, input transmission line impendence and $$\frac{o}{p}$$ port load impendence of 50 Ω. Find the output characterization impedances so that the input power is divided in a 2:1 ratio.

Video Solution
Question 63

Following circuit implements a

Video Solution
Question 64

The frequency of the output Y is

F : clock freq.

M : input

X : 32 bit register

Video Solution
Question 65

Consider the output A and B with $$I_{0},I_{1},I_{2}$$ and $$I_{3}$$ as input
$$A=\overline{I_{3}} \overline{I_{2}} I_{1}+I_{3}$$
$$B=\overline{I_{3}} I_{1}+I_{3}$$
The above circuit is

Video Solution
Question 66

The output Z =

Video Solution
Question 67

Consider the shift register


The frequency of signal x is fs and the shift register is clocked at the positive edge of 2fs. The time offset between A and B is

Video Solution
Question 68

The circuit is formed as shown below. The output S and C implement

Video Solution
Question 69

What is the value of the register formed from D flip-flops using $$Q_{0},Q_{1}$$, and $$Q_{2}$$ as output $$(Q_{0},Q_{1},Q_{2})$$ after 14 cycles

Video Solution
Question 70

The 4:1 Multiplexer implemented as

Video Solution

Register with

OR

Boost your Prep!

Download App