Saturday 29 December 2012

electronics important questions



Q1.  (I)Convert the (724.63 )10 into a number system whose base  b is

(a)       4  
(b)      6
(c)       12      
     (II)
·         Convert (2 B 8)16 into binary 


Q2. (A)Perform the following binary subtraction operation using 2’s complement method .

(a)                (7)10-(22)10
(b)        (111001)2-(101011)2
    (B) Perform the following binary subtraction operation using 1’s complement method .
(a)    (43)10-(57)10
(b)    (111101)2 - (101011)2   
    (C) Perform the following binary subtraction operation using 10’s & 9’s complement method .
(a)    (434)10-(5778)10
(b)    (9101)10 - (840)10   



Q3.  1. What is the hexadecimal representation for the binary number 100100101011 ?

        2. What is the base 10 number 233, expressed as binary?

        3. What is the base 10 number, 312, expressed as hexadecimal?

        4. What is the binary representation for 0xAC?

        6. What is the binary representation for 101, in base 10




Q4.  Perform BCD Operation

(i)                 22+34    (ii)  6743 + 7843

(iii)              56-45    (iv) 456-856

Q5 Perform the  following Operation

(i)                 (434)9-(5778)9

(ii)               (10010.101)2+(1010100)2

(iii)             (1100101)2-111011)2

(iv)            (34244)5+(44432)5    

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