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20BSC1017 Sukhman EXP 3

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Experiment Number -

3
Student Name: Prabhdeep singh UID: 20BSC1075
Branch: B.SC. C.S. Section/Group: A
Semester: 2nd Date of Performance: 03/03/2021
Subject Name: DCLD Lab Subject Code: 20SCP-156

1. Aim/Overview of the practical:

a. Realize the given circuit diagram shown in figure 1 using 2 input NOR gate

Figure 1 circuit diagram

b. Realize the given circuit diagram shown in figure 2 using 2 input NOR gate
Figure 2 circuit diagram

2. Task to be done:

Circuit for a:

Truth table for a:


A B C X
0 0 0 0
0 0 1 1
0 1 0 1
0 1 1 1
1 0 0 0
1 0 1 0
1 1 0 0
1 1 1 0

Circuit for b:

Truth table for b:


A B C X
0 0 0 0
0 0 1 0
0 1 0 0
0 1 1 0
1 0 0 1
1 0 1 1
1 1 0 1
1 1 1 1
3. Hardware Required:
We are using breadboard, five NOR gates , wires and one led and also one 3V battery.

4. Steps for experiment/practical:


For circuit 1: -

When glows in inputs

When not glows in inputs: -

For circuit 2: -
When glows in inputs: -

When not glows in inputs: -

6. Calculations:
Truth table for a:
A B C X
0 0 0 0
0 0 1 1
0 1 0 1
0 1 1 1
1 0 0 0
1 0 1 0
1 1 0 0
1 1 1 0

Truth table for b:


A B C X
0 0 0 0
0 0 1 0
0 1 0 0
0 1 1 0
1 0 0 1
1 0 1 1
1 1 0 1
1 1 1 1

Output:
Truth table for a:
A B C X
0 0 0 NOT GLOW
0 0 1 GLOW
0 1 0 GLOW
0 1 1 GLOW
1 0 0 NOT GLOW
1 0 1 NOT GLOW
1 1 0 NOT GLOW
1 1 1 NOT GLOW

Truth table for b:


A B C X
0 0 0 0 NOT GLOW
0 0 1 0 NOT GLOW
0 1 0 0 NOT GLOW
0 1 1 0 NOT GLOW
1 0 0 GLOW
1 0 1 GLOW
1 1 0 GLOW
1 1 1 GLOW

9. Learning outcomes (What I have learnt):


1.I have learnt the use of NOR Gates.

2. I have leant the truth table of the three-pin input NOR gate.

3. I have learnt that how we can make hex inverter means NOT gate with the use of NOR gate.

4. I have leant the different input and output system for NOR gate.

5. I have learnt the practical representation and circuit making of NOR gates.

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