Question

When the two inputs of a NAND gate are shorted, the resulting gate is
A-NOR
B-OR
C-NOT
D-AND

Answer 1

Logic gates are the basic building blocks of any digital system. It is an electronic circuit having one or more than one input and only one output.The number of gates which are commonly used are OR gate, AND gate, NOT gate, NOR gate, NAND gate, XOR gate, XNOR gate

Complete step by step answer:
First of all, we should know what a NAND gate is. A NAND gate is made up of two gates that is NOT+AND=NAND. The NAND gate gives the low output only when their output is high.

The output can be expressed as $Z=\overline{A.B}$, where A and B are its two inputs.
The truth table of the NAND gate is given below:
now

A	B	Z
0	0	1
0	1	1
1	0	1
1	1	0

now when the gate is shorted it means the input is the same. The new truth table of this gate is,

A	Z
0	1
1	0

This clearly shows that this gate works like a NOT gate.

So, the correct answer is “Option C”.

Note:
There are three basic gates and two more gates. With the help of NOR & NAND gates we can build all the gates.The inputs and outputs of logic gates can be represented by HIGH and LOW, 0 and 1, True and False. Logic gates play a very important role in digital electronics.