Download OU B.Sc 2019 Dec 5th Sem (3rd Year) 8205E Electronics Question Paper

PART - A (5x3 = 15 Marks)

(Short Answer Type)

Note : Answer all the following FIVE questions.

1. Find the decimal equivalent of binary number 1111.

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2. Explain the working of AND gate with its circuit diagram.
3. Prove the Boolean identity (A + B) (A + C) = A + BC.
4. Explain the operation of a decoder.
5. Explain working of R-S flip flop with diagrams and truth table.
6. Explain Ring Counter.

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7. Explain the working of synchronous counter.
8. Differentiate between static and dynamic RAM.

PART - B (45 Marks)

(Essay Answer Type)

Note : Answer all the following three questions.

9. a. What is 2's complement of a binary number? Explain the subtraction of binary numbers using 2's complement method.
   

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   OR
   b. Draw the circuit diagram of Half adder and Full adder and give their truth tables.
10. a. Write and prove the De-Morgan's theorems.
    b. Draw the circuit diagram of a De-multiplexer and discuss its operation with the help of diagrams.
11. a. Describe the working of Master-Slave JK flip flop with a neat circuit diagram.
    

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    b. Explain Universal shift register using IC 7496.
12. Explain the difference between ROM, PROM and EPROM.
13. Explain the working of a ripple counter with truth table and timing diagrams.

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