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  • Question
  • In a ripple counter,


  • Options
  • A. whenever a flip flop sets to 1, the next higher FF toggles
  • B. whenever a flip flop sets to 0, the next higher FF remains unchanged
  • C. whenever a flip flop sets to 1, the next higher FF faces race condition
  • D. whenever a flip flop sets to 0, the next higher FF faces race condition

  • Correct Answer
  • whenever a flip flop sets to 1, the next higher FF toggles 

    Explanation
    In a ripple counter the effect ripples through the counter.

    Digital Electronics problems


    Search Results


    • 1. 2's complement of binary number 0101 is

    • Options
    • A. 1011
    • B. 1111
    • C. 1101
    • D. 1110
    • Discuss
    • 2. A memory system of size 16 k bytes is to be designed using memory chips which have 12 address lines and 4 data lines each. The number of such chips required to design the memory system is

    • Options
    • A. 2
    • B. 4
    • C. 8
    • D. 18
    • Discuss
    • 3. The hexadecimal number (3E8)16 is equal to decimal number

    • Options
    • A. 1000
    • B. 982
    • C. 768
    • D. 323
    • Discuss
    • 4. The counter in the given figure is

    • Options
    • A. Mod 3
    • B. Mod 6
    • C. Mod 8
    • D. Mod 7
    • Discuss
    • 5. A full adder can be made out of

    • Options
    • A. two half adders
    • B. two half adders and a OR gate
    • C. two half adders and a NOT gate
    • D. three half adders
    • Discuss
    • 6. Which device has one input and many outputs?

    • Options
    • A. Multiplexer
    • B. Demultiplexer
    • C. Counter
    • D. Flip flop
    • Discuss
    • 7. The greatest negative number which can be stored is 8 bit computer using 2's complement arithmetic is

    • Options
    • A. - 256
    • B. - 128
    • C. - 255
    • D. - 127
    • Discuss
    • 8. 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
    • 9. A ring counter with 5 flip flops will have

    • Options
    • A. 5 states
    • B. 10 states
    • C. 32 states
    • D. infinite states
    • Discuss
    • 10. 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


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