# Can XOR gate have 3 inputs?

If the

**inputs**are the same the output is low. Hence this truth table: You**can**find a**XOR gate**that**have**more than two**inputs**, but they are not actually a**3 input XOR**. They**XOR input**A and B and the result of them "R" is then**XOR**with**input**C. And the result of R**XOR**C is then**XOR**with**input**4 and so on.A.

### How many inputs can be in a AND gate?

The truth table for a NAND gate is as one might expect, exactly opposite as that of an AND gate: As with AND gates, NAND gates are made with more than

**two inputs**. In such cases, the same general principle applies: the output will be “low” (0) if and only if all inputs are “high” (1).#### What is the logic circuit?

In electronics, a**logic**gate is an idealized or physical device implementing a Boolean function; that is, it performs a**logical**operation on one or more binary inputs and produces a single binary output.#### Why logic gates are used?

A**logic gate**implements a Boolean function and thus performs a**logical**operation on one or several**logic**inputs in order to produce a single**logic**output. A**logic gate**often uses diodes or transistors that act like electronic switches.#### How does the transistor work?

A**transistor**is a miniature electronic component that can do two different jobs. It can**work**either as an amplifier or a switch: When it works as an amplifier, it takes in a tiny electric current at one end (an input current) and produces a much bigger electric current (an output current) at the other.

Updated: 3rd December 2019