Question

Two NOT gates are connected at the two inputs of a NAND gate. This combination will behave like
A) NAND gate
B) AND gate
C) OR gate
D) NOR gate

Answer 1

Hint:In this problem, the concept of logic gates will be used. In this a type of electronic circuit is used that works with one or more than one inputs but gives only one output. These gates perform basic logic functions and are the building blocks of electronic circuits in any digital system.

Step-By-Step Explanation:
Step I:
The logic gates have two or more gates at the input and have only one output. The combination of inputs is done and the outputs are represented by making use of truth tables. A truth table is a table that is used to represent the Boolean expression for a logic gate.
Step II:
If two NOT gates are connected at the two inputs of a NAND gate, then no current will pass through the gate. This will result in a zero output. As a result the NAND gate will receive no input so the combination will behave like a OR gate. An OR gate can have a number of inputs but only one output. It has a high output if one or both the inputs of the gate are high and if no input is high then it results in a low output.
Step III:

$\therefore $Option C is the right answer.

Note:It is to be noted that the logic gates or the functioning of the gates are based on the Boolean function. A Boolean function is a function that assumes values from two set elements $\{ 0,1\} $. It is also sometimes known as a switching function. It is a branch of algebra that has truth values of true and false, that are represented by $1$and $0$only.