University of Sargodha M.Sc. I: T, Zero Term Exam 2013 Subject: Information Technology Paper: Basic Electronics (IT-109)

University of Sargodha

M.Sc. I: T, Zero Term Exam 2013

Subject: Information Technology

Paper: Basic Electronics (IT-109)

Time Allowed: 2:30 Hours

Maximum Marks: 80

Note:

Section-l is compulsory. Attempt any four questions from section-ll. Attempt all

questions on your answer book.

Section-

Objective Part

Marks: 16*2 = 32

Q.1

li

V

Vi

viD.

Vili -

Xi :

Xii:

Provide sufficient explanation for the following short questions. (All question

carry equal marks)

Draw logic circuits for the following expressions:

1.

X.= AB+CD

2. Y = A+BCD

Convert the following numbers

(357)a to decimal

(7777)no to octal:

Define magnetic field.

Differentiate between linear resistor and non-linear resistor.

Perform the following binary operations

• 10111 x.101

1111 + 111 + 1111

Write down the formula to find equivalent resjstance in the parallel resistive circuit.

Define Ohm's law also draw Its current voltage characteristic graph using constant

resistant?

Draw the logical circuit of XOR Gate.

Prove the following expression by truth table. A + AB = A

Define zero-reference level.

Define mobile charge carriers and immobile ions.

+

+

Construct the truth table for the logic prcuit shown.

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16*2

Xili

Xiv ~

XV S

XVI

Why we use clippers?

Define drift current.

Draw negative AND gate and negative OR gate?

Define ideal constant source.

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