Mahatma Gandhi University (MGU) 2009 B.Tech Electrical and Electronics Engineering BASIC ELECTRONICS ENGINEERING - Question Paper

G 5817

B.TECH. DEGREE EXAMINATION, APRIL/MAY 2009
(First and 2nd semester)

BASIC ELECTRONICS ENGINEERING
(Common for all Branches)

Time: 3 Hours ; Maximum: 100 marks
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Part A ----- [10 x four = 40 marks]
(Answer all ques. briefly .Each ques. carries four marks.)

01. elaborate active and passive components ? Name atleast 2 in every category.

02. discuss any 4 electrical properties of semiconductors.

03. Draw the functional blocks in an eliminator circuit

04. compute the a and ß of a transistor having emitter current two mA and base current 18µA.

05. define the value of the frequency ranges RF, VHF and UHF used in electronic communication.

06. Briefly define the CRT scanning principle in a TV.

07. What is a thermistor ? Why it is well suited to precision measurement, control and compensation?

08. elaborate universal logic gates ? Why they are called so ?

09. discuss the various kinds of ROM, bringing out their features briefly.

10. describe and distinguish ranging from compilers and assemblers.

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Part B. ----- [5 x 12 = 60 marks].
ans either A or B part of every module.
every full ques. carries 12 marks.

11.
(a) With neat sketches, discuss the construction of an electrolytic capacitor. elaborate its important features and applications?

OR

(b) define p kind and n kind semiconductors and discuss how they produce a contact potential when a pn junction is formed.

12.
(a) Draw the circuit diagram and define the operation with the help of necessary waveforms of a bridge rectifier. Compare its performance with that of a centre tapped circuit.

OR

(b) Sketch the input and output charectristics of a CB configuration and discuss . tag the important operating regions on them.

13.
(a) (1) With the help of waveforms discuss FM. ---- [4 marks]
(2) Draw the block diagram of an AM transmitter and discuss every block. -- [8 marks]

OR

(b) Draw the block diagram of a monochrome TV receiver and discuss the function of every block.

14.
(A) With neat diagrams ,describe the principle of strain guages. discuss any 2 kinds and their applications.

OR

(B) (a) Solve the subsequent issues provided in binary form:
(1) 110101 + 111111 , (2) 10000 - 1111.
(3) 1010 x 1101 , (4) 1101 / 101
--------- [8 marks]
(b) Perform the subsequent conversion, show all steps:
(1) (359) base10 = (?)base eight ; (2) (362)base8 = (?)base2. -------- [4 marks]
15.
(a) (1) define briefly the operations of any 2 kinds of output devices used in a digital computer -- [6 marks]
(2) What is a hard disc? discuss the organisation and formatting of a hard disk.[6 marks]

OR

(b) (1) discuss the principle of operation of a mouse. [6 marks]
(2) describe and distinguish ranging from Machine, Assembly and High-level languages. [6 marks]

Earning:   Approval pending.