JEE Main & Advanced Physics Semiconducting Devices Question Bank Digital Electronics

  • question_answer
    Sum of the two binary numbers \[{{(1000010)}_{2}}\] and \[{{(11011)}_{2}}\] is                                                  [DCE 2004]

    A)            \[{{(111101)}_{2}}\]          

    B)            \[{{(111111)}_{2}}\]

    C)            \[{{(101111)}_{2}}\]          

    D)            \[{{(111001)}_{2}}\]

    Correct Answer: A

    Solution :

                       \[{{(100010)}_{2}}={{2}^{5}}\times 1+{{2}^{4}}\times 0+{{2}^{3}}\times 0+{{2}^{2}}\times 0+\]                                 \[{{2}^{1}}\times 1+{{2}^{0}}\times 0\]\[=32+0+0+0+2+0={{(34)}_{10}}\]                    and \[{{(11011)}_{2}}={{2}^{4}}\times 1+{{2}^{3}}\times 1+{{2}^{2}}\times 0+{{2}^{1}}\times 1+{{2}^{0}}\times 1\]                                 \[=16+8+0+2+1={{(27)}_{10}}\]                    \ Sum \[{{(100010)}_{2}}+{{(11011)}_{2}}={{(34)}_{10}}+{{(27)}_{10}}={{(61)}_{10}}\]                    Now
    2 61 Remainder
    2 30 1    LSD
    2 15 0
    2 7 1
    2 3 1
    2 1 1
    0 1    MSD
                                          \ Required sum (in binary system)                    \[{{(100010)}_{2}}+{{(11011)}_{2}}={{(111101)}_{2}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner