Electronics and Communication Engineering - Digital Electronics - Discussion
Discussion Forum : Digital Electronics - Section 1 (Q.No. 13)
13.
The circuit in the given figure is
Answer: Option
Explanation:
Since V(I) is lower state than V(0) it is a negative logic circuit. Since diodes are in reversed parallel, it is an AND gate.
Note: In Boolean algebra it is recognized that a positive logic OR is a negative logic AND. Similarly a positive logic AND is a negative logic OR.
Discussion:
29 comments Page 2 of 3.
Ayush Kumar said:
8 years ago
Why are you confused friends?
The right answer is negative logic AND gate because diode is reversed.
The right answer is negative logic AND gate because diode is reversed.
Arnab said:
8 years ago
It is only positive logic AND gate.
Tamil said:
8 years ago
@Lavanya.
The pulse is low to high so this is negative and the diodes are reversed. So this is negative logic AND gate. Suppose the diodes are forward this logic is negative logic OR gate.
The pulse is low to high so this is negative and the diodes are reversed. So this is negative logic AND gate. Suppose the diodes are forward this logic is negative logic OR gate.
Lavanya said:
8 years ago
Which is the correct answer and how? Please explain it clearly.
Sai said:
8 years ago
How we find AND OR using diodes?
Chand said:
8 years ago
Positive logic AND, Negative logic OR both.
Mohd Salim said:
8 years ago
It should be a Negative logic AND gate.
Pranab said:
8 years ago
It is -ve logic OR gate and it is also +ve logic AND gate.
Gaurav pandey said:
9 years ago
Negative logic AND gate is the right answer.
Sumit Dath said:
9 years ago
It is negative logic AND gate.
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