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B.Sc.(Hons) Electronics II Year Assessment I Max.Marks:25                                                                                                                Time: 1Hr

Q2. Find the Gray code of the binary no. 101101101? What is the significance of the Gray code? 2 Q3. What range of signed and unsigned values can be represented in 8 bits? 2 Q4. Add 78910 to 18310 in 8421 BCD 2 Q5. (355.125)10 = (x)8 = (y)16  =  (z)2 Find x y and z.                                                                                                   3 Q6. Subtract 10011.11 from 1000001.0001 using 1’s complement and 2’s complement method 4 Q7. Find the decimal equivalent of (AE4)16 1 Q8. ) Perfor  Perform 2’s complement subtraction on decimal numbers using 8 bits	4210  -  9010                                                                                                                           3 Q9. Which code is referred to as ‘REFLECTIVE CODE’? Why?                                                                        1 Q10 Perform XS3 addition 2 Q11. Differentiate between LCD and LED 2 Q12 Express 7892 in BCD 2421 and Excess-3 code. 2