# How To Build An And Gate?

## How do you make an AND gate circuit?

To build a logic AND gate you are going to need the following parts:

2. 1x LED (Any color, red was used in this project)
3. 1x 1K Ohm resistor.
4. 2x 10K Ohm resistors.
5. 2x NPN Transistors (I used the 2N2222)
6. 2x N.O. Push buttons (Normally Open)
7. 5x Wires/Jumper Wires.

## How do you make 3 input AND gate using 2 input AND gate?

Start by building the 2input AND block from the last experiment, but plug the output of that into the input of another AND. Then add an Input Block to the second AND’s second input. Complete the circuit by adding a Power Block to the output of the second AND.

## Why is an OR gate better than an AND gate?

However, the two are mainly differentiated on the basis of logic operation performed by them. The crucial difference between AND gate and OR gate is that AND gate performs multiplication of the digital inputs. As against the OR logic gate is used to execute the addition of the digital inputs.

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## Can an AND gate have 3 inputs?

Like the AND gate, the OR function can have any number of individual inputs. However, commercial available OR gates are available in 2, 3, or 4 inputs types. Additional inputs will require gates to be cascaded together for example.

## Where is and gate used?

The AND gate is a basic digital logic gate that implements logical conjunction – it behaves according to the truth table to the right. A HIGH output (1) results only if all the inputs to the AND gate are HIGH (1). If none or not all inputs to the AND gate are HIGH, LOW output results.

## What is 3 input AND gate?

General Description. This device contains three independent gates each of which performs the logic AND function. Ordering Code: Devices also available in Tape and Reel.

## WHAT IS AND gate or gate and not gate?

The OR gate is an electronic circuit that gives a high output (1) if one or more of its inputs are high. This is a NOT-AND gate which is equal to an AND gate followed by a NOT gate. The outputs of all NAND gates are high if any of the inputs are low. The symbol is an AND gate with a small circle on the output.

## What is the truth table of OR gate?

The table used to represent the boolean expression of a logic gate function is commonly called a Truth Table. A logic gate truth table shows each possible input combination to the gate or circuit with the resultant output depending upon the combination of these input(s).

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## How many different sets of input conditions will produce a low output from a five input AND gate?

How many different sets of input conditions will produce a HIGH output from a fiveinput OR gate? Sol. The total number of sets of input conditions are 25 = 32. The output is low only when all the inputs are low.

## What is the Boolean expression for and gate?

In other words for a logic AND gate, any LOW input will give a LOW output. The logic or Boolean expression given for a digital logic AND gate is that for Logical Multiplication which is denoted by a single dot or full stop symbol, (. ) giving us the Boolean expression of: A.B = Q.

## What are the 7 logic gates?

The basic logic gates are classified into seven types: AND gate, OR gate, XOR gate, NAND gate, NOR gate, XNOR gate, and NOT gate. The truth table is used to show the logic gate function. All the logic gates have two inputs except the NOT gate, which has only one input.

## Why is it called an AND gate?

Basic logic gates

The AND gate is so named because, if 0 is called “false” and 1 is called “true,” the gate acts in the same way as the logical “and” operator. The output is “true” when both inputs are “true.” Otherwise, the output is “false.” In other words, the output is 1 only when both inputs one AND two are 1.

## What does a XOR gate do?

XOR gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs is odd. An XOR gate implements an exclusive or; that is, a true output results if one, and only one, of the inputs to the gate is true.