This document describes a physics investigatory project on logic gates submitted by S. Kiruthiga of Kendriya Vidyalaya, Dharmapuri. It includes an introduction to logic gates, their basic principles and types including OR, AND, NOT, NOR and NAND gates. Circuit diagrams and truth tables are provided for each gate. The project was guided by [name removed] and certifies this as Kiruthiga's bona fide work.
This time I am presenting you Physics Investigatory Project for class 12 on the topic "TO DESIGN APPROPRIATE LOGIC GATE COMBINATION FOR GIVEN TRUTH TABLE"
This time I am presenting you Physics Investigatory Project for class 12 on the topic "TO DESIGN APPROPRIATE LOGIC GATE COMBINATION FOR GIVEN TRUTH TABLE"
Class 12 Physics Investigatory Project Work, Practical- study of various logi...Kendriya Vidyalaya
Class 12 Physics Investigatory Project Work, Practical- study of various logic gates.
Just edit first and second page of this project and the project is all yours. Please drop a like before downloading......
Watch my video for further explaination
https://www.youtube.com/watch?v=1IoOGG_SBzw&lc=z22ju3nxqvrvzrghz04t1aokgmmjnqr0ld5exqhxchswrk0h00410
This is the project that describes each logic gate briefly. This includes AND , OR, NOT, NOR, NAND,XOR. Each gate has the symbol, working, boolean formula and the observation table.
this project requires breadboard, single stranded wire, battery pack(d.c.) , multimeter and finally their applications.
Rithu
AECS Kudankulam
logic gates ,truth table , boolean expression, basic gates, universal gates . what is and gate , or gate , not gate , nand gate , nor gate , what is logic circuit , symbol of and gate , not gate , or gate
Class 12 Physics Investigatory Project Work, Practical- study of various logi...Kendriya Vidyalaya
Class 12 Physics Investigatory Project Work, Practical- study of various logic gates.
Just edit first and second page of this project and the project is all yours. Please drop a like before downloading......
Watch my video for further explaination
https://www.youtube.com/watch?v=1IoOGG_SBzw&lc=z22ju3nxqvrvzrghz04t1aokgmmjnqr0ld5exqhxchswrk0h00410
This is the project that describes each logic gate briefly. This includes AND , OR, NOT, NOR, NAND,XOR. Each gate has the symbol, working, boolean formula and the observation table.
this project requires breadboard, single stranded wire, battery pack(d.c.) , multimeter and finally their applications.
Rithu
AECS Kudankulam
logic gates ,truth table , boolean expression, basic gates, universal gates . what is and gate , or gate , not gate , nand gate , nor gate , what is logic circuit , symbol of and gate , not gate , or gate
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
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3. KENDRIYA VIDYALAYA, DHARMAPURI.
PHYSICS
2014-2015
BONA FIDE CERTIFICATE
This is to certify that this project entitled “LOGIC
GATES” is a record of bonafide work carried out by
S.KIRUTHIGA in PHYSICS prescribed by Kendriya
vidyalaya - Dharmapuri.
ROLL NUMBER: DATE :
INTERNAL EXAMINER : PRINCIPAL :
EXTERNAL EXAMINER :
4. DECLARATION
I hereby declare that the project work entitled
“LOGIC GATES” submitted to KENDRIYA VIDYALAYA,
DHARMAPURI for the subject PHYSICS under the
guidance of is a record
of original work done by me. I further declare that
this project or any part of it has not been submitted
elsewhere for any other class.
Class:
Place:
Date:
5. ACKNOWLEDGEMENT
I'd like to express my greatest gratitude to
the people who have helped & supported me
throughout my project. I’m grateful to
for his continuous support
for the project, from initial advice &
encouragement to this day.
Special thanks of mine goes to my
brother who helped me in completing the
project by giving interesting ideas, thoughts &
made this project easy and accurate.
I wish to thanks my parents for their
undivided support & interest who inspired me
& encouraged me to go my own way, without
which I would be unable to complete my
project. At last but not the least I want to
thanks my friends who appreciated me for my
work & motivated me and finally to God who
made all the things possible…
7. INTRODUCTION
A gate is defined as a digital circuit which follows some
logical relationship between the input and output
voltages. It is a digital circuit which either allows a
signal to pass through as stop, it is called a gate.
The logic gates are building blocks at digital
electronics. They are used in digital electronics to change
on voltage level (input voltage) into another (output
voltage) according to some logical statement relating
them.
A logic gate may have one or more inputs, but it has
only one output. The relationship between the possible
values of input and output voltage is expressed in the
8. form of a table called truth table or table of
combinations.
Truth table of a Logic Gates is a table that shows all the
input and output possibilities for the logic gate.
George Boole in 1980 invented a different kind of
algebra based on binary nature at the logic, this algebra
of logic called BOOLEAN ALGEBRA. A logical statement
can have only two values, such as HIGH/LOW, ON/OFF,
CLOSED/OPEN, YES/NO, RIGHT/WRONG,TRUE/FALSE,
CONDUCTING/NON-CONDUCTING etc. The two values
of logic statements one denoted by the binary number 1
and 0. The binary number 1 is used to denote the high
value. The logical statements that logic gates follow are
called Boolean expressions.
9. PRINCIPLE
Any Boolean algebra operation can be associated with
inputs and outputs represent the statements of Boolean
algebra. Although these circuits may be complex, they
may all be constructed from three basic devices. We have
three different types of logic gates .These are the AND
gate, the OR gate and the NOT gate.
LOGIC STATES
1 0
HIGH LOW
+v -v
ON OFF
CLOSE OPEN
RIGHT WRONG
TRUE FALSE
YES NO
10. BASIC GATES
(a) THE OR GATE is a device that combines A with B
to give Y as the result.
The OR gate has two or more inputs and one
output. The logic gate of OR gate with A and B
input and Y output is shown below:
In Boolean algebra,addition symbol (+) is referred
as the OR. The Boolean expression:
A+B=Y, indicates Y equals A OR B.
(b) THE AND GATE is a device that combines A with B
to give Y as the result.
The AND gate has two or more inputs and one
output. The logic gate of AND gate with A and B
input and Y output is shown below:
11. In Boolean algebra,multiplication sign (either x
or.) is referredas the AND. The Boolean
expression:
A.B=Y, indicates Y equals A AND B.
(C) THE NOT GATE is a device that inverts the
inputs. The NOT is a one input and one output.
The logic gate of NOT gate with A and Y output
is shown below:
In Boolean algebra,bar symbol (_
) is referredas
the NOT. The Boolean expression:
à =Y, indicates Y equals NOT A.
12. THE OR GATE
Aim:
To design and simulate the or gate circuit.
Components:
Two ideal p-n junction diode (D1 and D2).
TheoryandConstruction:
An OR gate can be realize by theelectronic circuit, making use of two
diodes D1 and D2 as shown in the figure.
Here the negative terminal of the battery is grounded and corresponds to
the 0 level, and the positive terminal of the battery (i.e. voltage 5V in the
present case) corresponds to level 1. The output Y is voltage at C w.r.t.
earth.
13. The followinginterference can be easilydrawn from the working of
electrical circuit is:
a) If switch A & B are open lamp do not glow (A=0, B=0), hence Y=0.
b) If Switch A open B closed then (A=0, B=1) Lamp glow, hence Y=1.
c) If switch A closed B open then (A=1, B=0) Lamp glow,hence Y=1.
d) If switch A & B are closed then (A=1, B=1) Lamp glow,hence Y=1.
Truth Table:
Input A Input B Output Y
0 0 0
1 0 1
0 1 1
1 1 1
14. THE AND GATE
Aim:
To design and simulate the and gate circuit.
Components:
Two ideal p-n junction diode (D1 and D2), a resistance R.
Theory andConstruction:
An AND gate can be realize by theelectroniccircuit, making use of two
diodes D1 and D2 as shown in the figure. The resistance R is connected to the
positive terminal of a 5V battery permanently.
Here the negative terminal of the battery is grounded and corresponds to
the 0 level, and the positive terminal of the battery (i.e. voltage 5V in the
present case) corresponds to level 1. The output Y is voltage at C w.r.t.
earth.
15. The followingconclusions can be easily drawn from the working of electrical
circuit:
a) If both switches A&B are open (A=0, B=0) then lamp will not glow,
hence Y=0.
b) If Switch A closed & B open (A=1, B=0) then Lamp will not glow,
hence Y=0.
c) If switch A open & B closed (A=0, B=1) then Lamp will not glow, hence
Y=0.
d) If switch A & B both closed (A=1, B=1) then Lamp will glow, hence
Y=1.
Truth Table:
Input A Input B Output Y
0 0 0
1 0 0
0 1 0
1 1 1
16. THE NOT GATE
Aim:
TO DESIGN AND SIMULATE THE NOT GATE CIRCUIT.
Components:
An ideal n-p-n transistor.
Theory andConstruction:
A NOT gate cannot be realized byusing diodes. However an electronic
circuit of NOT gate can be realized by making use of a n-p-n transistor as
shown in the figure.
The base B of the transistoris connected to the input A through a resistance
Rband the emitter E is earthed.The collectoris connected to 5V battery. The
output Y is voltage at C w.r.t. earth.
17. The following conclusion can be easily drawn from the working of the
electrical circuit:
a) If switch A is open (i.e. A=0), the lump will glow, hence Y=1.
b) If Switch A is closed (i.e. A=1), the lump will not glow, hence Y=0.
Truth Table:
Input A Output Y
0 1
1 0
18. THE NOR GATE
Aim:
TO DESIGN AND SIMULATE THE NOR GATE CIRCUIT.
Components:
Two ideal p-n junction diode (D1 and D2), an ideal n-p-n transistor.
Theory andConstruction:
If we connect the output Y’ of OR gate to the input of aNOT gate the
gate obtained is called NOR.
The output Y is voltage at C w.r.t. earth.
19. In Boolean expression,the NOR gate is expressed as Y=A+B, and is being
read as ‘A OR B negated’.The followinginterference can be easilydrawn
from the working of electrical circuit is:
a) If Switch A& B open (A=0, B=0) then Lamp will glow, hence Y=1.
b) If Switch A closed & B open (A=1, B=0) then Lamp will not glow,
hence Y=0.
c) If Switch Aopen& B close (A=0, B=1) then Lamp will not glow, hence
Y=0.
d) If switch A & B are closed then (A=1, B=1) Lamp will not glow, hence
Y=0.
Truth Table:
Input A Input B Output Y
0 0 1
1 0 0
0 1 0
1 1 0
20. THE NAND GATE
Aim:
TO DESIGN AND SIMULATE THE NAND GATE CIRCUIT.
Components:
Two ideal p-n junction diode (D1 and D2), a resistance R, an ideal n-p-n
transistor.
Theory and Construction:
If we connect the output Y’of AND gate to the input of aNOT gate the
gate obtained is called NAND.
The output Y is voltage at C w.r.t. earth.
21. In Boolean expression,the NANDgate is expressed as Y=A.B, and is being
read as ‘A AND B negated’.The followinginterference can be easilydrawn
from the working of electrical circuit:
a) If Switch A& B open (A=0, B=0) then Lamp will glow, hence Y=1.
b) If Switch A open B closed then (A=0, B=1) Lamp glow, hence Y=1.
c) If switch A closed B open then (A=1, B=0) Lamp glow,hence Y=1.
d) If switch A & B are closed then (A=1, B=1) Lamp will not glow, hence
Y=0.
Truth Table:
Input A Input B Output Y
0 0 1
1 0 1
0 1 1
1 1 0