logo

CuriousTab

CuriousTab

Discussion


Home Electronics and Communication Engineering Digital Electronics Comments

  • Question
  • The output of a half adder is


  • Options
  • A. SUM
  • B. CARRY
  • C. SUM and CARRY
  • D. none of the above

  • Correct Answer
  • SUM and CARRY 

    Explanation
    The output of a half adder is SUM CARRY SUM and CARRY none of the above

    Digital Electronics problems


    Search Results


    • 1. The fixed count that should be used so that the output register will represent the input for a 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).

    • Options
    • A. 000110
    • B. 0010
    • C. 1111
    • D. 011101
    • Discuss
    • 2. An AND gate has two inputs A and B and one inhibit input 3, Output is 1 if

    • Options
    • A. A = 1, B = 1, S = 1
    • B. A = 1, B = 1, S = 0
    • C. A = 1, B = 0, S = 1
    • D. A = 1, B = 0, S = 0
    • Discuss
    • 3. The resolution of an n bit DAC with a maximum input of 5 V is 5 mV. The value of n is

    • Options
    • A. 8
    • B. 9
    • C. 10
    • D. 11
    • Discuss
    • 4. A ring counter with 5 flip flops will have

    • Options
    • A. 5 states
    • B. 10 states
    • C. 32 states
    • D. infinite states
    • Discuss
    • 5. For the minterm designation Y = ? m (1, 3, 5, 7) the complete expression is

    • Options
    • A. Y = A BC + A B C
    • B. Y = A B C + A B C + ABC + A BC
    • C. Y = A B C + A B C + ABC + A BC
    • D. Y = A B C + ABC + A BC + A BC
    • Discuss
    • 6. A JK flip flop has tpd= 12 ns. The largest modulus of a ripple counter using these flip flops and operating at 10 MHz is

    • Options
    • A. 16
    • B. 64
    • C. 128
    • D. 256
    • Discuss
    • 7. Maxterm designation for A + B + C is

    • Options
    • A. M0
    • B. M1
    • C. M3
    • D. M4
    • Discuss
    • 8. In the expression A + BC, the total number of minterms will be

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
    • Discuss
    • 9. A carry look ahead adder is frequently used for addition because

    • Options
    • A. it costs less
    • B. it is faster
    • C. it is more accurate
    • D. is uses fewer gates
    • Discuss
    • 10. A decade counter skips

    • Options
    • A. binary states 1000 to 1111
    • B. binary states 0000 to 0011
    • C. binary states 1010 to 1111
    • D. binary states 1111 to higher
    • Discuss


    Comments

    There are no comments.

Enter a new Comment