Contents

- 1 How do you make an AND gate circuit?
- 2 How do you make 3 input AND gate using 2 input AND gate?
- 3 Why is an OR gate better than an AND gate?
- 4 Can an AND gate have 3 inputs?
- 5 Where is and gate used?
- 6 What is 3 input AND gate?
- 7 WHAT IS AND gate or gate and not gate?
- 8 What is the truth table of OR gate?
- 9 How many different sets of input conditions will produce a low output from a five input AND gate?
- 10 What is the Boolean expression for and gate?
- 11 What are the 7 logic gates?
- 12 Why is it called an AND gate?
- 13 What does a XOR gate do?

## How do you make an AND gate circuit?

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

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

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

Start by building the **2**–**input** 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.

## 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).

## 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 five**–**input** 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.