Digital Electronics - Study Mode
[#251] In the following state table, the equivalent states are
Correct Answer
(C) (a, b)(c, d)
[#252] The expression for the truth table given below in POS form is given by: A xa0 xa0 B C F 0 xa0 xa0 0 0 1 0 xa0 xa0 0 1 0 0 xa0 xa0 1 0 1 0 xa0 xa0 1 1 1 1 xa0 xa0 0 0 1 1 xa0 xa0 0 1 1 1 xa0 xa0 1 0 1 1 xa0 xa0 1 1 0
Correct Answer
(B) (A + B + C')(A' + B' + C')
[#253] Consider the following statements regarding configuration of TTL devices: 1. The output impedance of totem pole transistor is high. 2. Open collector output devices have low switching speed. 3. Power consumption of Schottky devices is high. 4. Tri-state output devices have high switching speed. Of these statements:
Correct Answer
(C) 2 and 3 are correct
[#254] An input frequency of 12 KHz is applied to the J-K flip-flops arrangement shown in the given figure. The resulting output frequency will be
Correct Answer
(D) 3 KHz
[#255] Consider the Karnaugh map given below : The function represented by this map can be simplified to the minimal form as
Correct Answer
(C) $${{ ext{x}}_2}{{ ext{x}}_4} + {overline { ext{x}} _2}{overline { ext{x}} _4} + {{ ext{x}}_1}{overline { ext{x}} _3}$$