Electronics and Communication Engineering - Electronic Devices and Circuits

46.
Decimal number 5436 when converted into 9's complement will become
4356
4653
4563
4655
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
What is output 'Z' of an EX-OR gate, whose all inputs are set at A?
Z = A
Z = 1
Z = 0
Z = A
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
Minimum number of J-K flip-flop needed to construct a BCD counter is
2
3
4
5
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
The following switching functions are to be implemented using a decoder
  1. f1 = ∑m (1, 2, 4, 8, 10, 14)
  2. f2 = ∑m (2, 5, 9, 15)
  3. f3 = ∑m (2, 4, 5, 6, 7)
The minimum configuration of decoder is
2 to 4 line
3 to 8 line
4 to 16 line
5 to 32 line
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
For the logic circuit of the given figure the simplified Boolean expression is
A ⊕ B
A + B
AB
A + B
Answer: Option
Explanation:
No answer description is available. Let's discuss.