BASICS OF ELECTRONICS ENGINEERING EC100 QUESTION PAPER WITH ANSWERS FOR S1-S2 KTU STUDENTS [FIRST YEAR] Part - |||


BASICS OF ELECTRONICS ENGINEERING QUESTION PAPER WITH ANSWERS

Basics of Electronics Engineering EC100 question papers,Basics of Electronics Engineering EC100 questions and answers,Basics of Electronics Engineering EC100 solved answers,electronics engineering questions and answers,ktu btech electronics engineering questions and answers,electronics engineering question papers,electronics engineering,basic electronics engineering questions,bee questions,BASICS OF ELECTRONICS ENGINEERING EC100  QUESTION PAPER WITH ANSWERS FOR S1-S2 KTU STUDENTS [FIRST YEAR] Part - |||
12. What are the advantages of integrated circuits?

A.
                       
1. Extremely small size – thousand times smaller than discrete circuits. 

It is because of fabrication of various circuit elements in a single chip of semiconductor material.
                      
2. Very small weight owing to miniaturized circuit.
                      
3. Very low cost because of simultaneous production of hundreds of similar circuits on a small semiconductor wafer. 

Owing to mass production of an IC costs as much as an individual transistor.
            
4. More reliable because of elimination of soldered joints and need for fewer interconnections.

5. Lower power consumption because of their smaller size.

13. What is frequency modulation? Write the frequency bands used for AM and FM broadcast.

A.

Frequency modulation

It is a process in which the frequency of the carrier is varied in accordance with the instantaneous value of modulating or information signal.

Frequency bands used for AM and FM broadcast

The Amplitude Modulated (AM radio) carrier frequencies are in the frequency range 535-1605 kHz. 

Carrier frequencies of 540 to 1600 kHz are assigned at 10 kHz intervals.

The FM radio band is from 88 to 108 MHz between VHF televisions. 

The FM stations are assigned center frequencies at 200 kHz separation starting at 88.1 MHz, for a maximum of
100 stations. 

These FM stations have a 75 kHz maximum deviation from the center frequency, which leaves 25 kHz upper and lower "gaurd bands" to minimize interaction
with the adjacent frequency band.

14. Write the RADAR range equation and list the factors affecting the range.

A.

Maximum RADAR range equation is

Basics of Electronics Engineering EC100 question papers,Basics of Electronics Engineering EC100 questions and answers,Basics of Electronics Engineering EC100 solved answers,electronics engineering questions and answers,ktu btech electronics engineering questions and answers,electronics engineering question papers,electronics engineering,basic electronics engineering questions,bee questions,BASICS OF ELECTRONICS ENGINEERING EC100  QUESTION PAPER WITH ANSWERS FOR S1-S2 KTU STUDENTS [FIRST YEAR] Part - |||

List the factors affecting the range
                
1. The maximum range at which it can see a target of a specified size.
                
2. The accuracy of its measurement of target location in range and angle.
                
3. The ability to distinguish one target from another.

15. Discuss the basic principle of GPS. 

GPS is a satellite based navigation system. It uses a digital signal at about 1.5 GHz from each satellite to send data to the receiver. 

The receiver can then deduce its exact range from the satellite, as well as the geographic position (GP) of the satellite. 

The GP is the location on the Earth directly below the satellite. This establishes a line of position (LOP) on the Earth.

16. What is the need for cell splitting in cellular communication system? 

Cell splitting is the process of dividing the radio coverage of a cell site in a wireless telephone system into two or more new cell sites.

 Cell splitting may be performed to provide additional capacity within the region of the original cell site, the cells are divided in hexagonal shape to cover all the area.

17. What are the characteristics of Plasma Display? 

 It is also called as gas discharge display 

 Flat-screen technology that uses tiny cells lined with phosphor that are full of inert ionized gas (typically a mix of xenon and neon) 

 Three cells make up one pixel (one cell has red phosphor, one green, one blue). The cells are sandwiched between x- and y-axis panels, and a cell is selected by charging the appropriate x and y electrodes 

 The charge causes the gas in the cell to emit ultraviolet light, which causes the phosphor to emit color. The amount of charge determines the intensity, and the combination of the different intensities of red, green and blue produce all the colors required Plasma monitors consume significantly more current than LCD-based monitors

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