logo

CuriousTab

CuriousTab

Discussion


Home Electronics and Communication Engineering Digital Electronics Comments

  • Question
  • If the functions w, x, y, z are as follows.
    w = R + PQ + RS ,
    x = PQR S + PQR S + PQ R S
    If the functions w, x, y, z are as follows. w = R + PQ + RS , x = PQR S + PQR S + PQ R S Then w = z
    If the functions w, x, y, z are as follows. w = R + PQ + RS , x = PQR S + PQR S + PQ R S Then w = z
    Then


  • Options
  • A. w = z x = z
  • B. w = z, x = y
  • C. w = y
  • D. w = y = z

  • Correct Answer
  • w = z x = z 

    Explanation
    Use k-map, then it will be easy.

    Digital Electronics problems


    Search Results


    • 1. Zero suppression is not used in actual practice.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. For the truth table of the given figure Y =

    • Options
    • A. A + B + C
    • B. A + BC
    • C. A
    • D. B
    • Discuss
    • 3. The number of distinct Boolean expression of 4 variables is

    • Options
    • A. 16
    • B. 256
    • C. 1024
    • D. 65536
    • Discuss
    • 4. For the K map in the given figure the simplified Boolean expression is

    • Options
    • A. A C + A D + ABC
    • B. A C + A D + ABC
    • C. A C + A D + ACD
    • D. A C + A D + AB C
    • Discuss
    • 5. The expression Y = pM (0, 1, 3, 4) is

    • Options
    • A. POS
    • B. SOP
    • C. Hybrid
    • D. none of the above
    • Discuss
    • 6. The access time of a word in 4 MB main memory is 100 ms. The access time of a word in a 32 kb data cache memory is 10 ns. The average data cache bit ratio is 0.95. The efficiency of memory access time is

    • Options
    • A. 9.5 ns
    • B. 14.5 ns
    • C. 20 ns
    • D. 95 ns
    • Discuss
    • 7. An OR gate has 4 inputs. One input is high and the other three are low. The output

    • Options
    • A. is low
    • B. is high
    • C. is alternately high and low
    • D. may be high or low depending on relative magnitude of inputs
    • Discuss
    • 8. Which of the following is non-saturating?

    • Options
    • A. TTL
    • B. CMOS
    • C. ECL
    • D. Both (a) and (b)
    • Discuss
    • 9. A device which converts BCD to seven segment is called

    • Options
    • A. encoder
    • B. decoder
    • C. multiplexer
    • D. none of these
    • Discuss
    • 10. A 12 bit ADC is used to convert analog voltage of 0 to 10 V into digital. The resolution is

    • Options
    • A. 2.44 mV
    • B. 24.4 mV
    • C. 1.2 V
    • D. none of the above
    • Discuss


    Comments

    There are no comments.

Enter a new Comment