Doorbell Ringer using OR gate

     AIM:  Design Doorbell Ringer using OR gate.

 To perform this experiment, we need the following. 

1. Breadboard 

2. Resistor

3. Buzzer

4.  2 Slide switches 

5. OR gate IC 7432

6. LED

Theory:

• An OR Gate is an electronic circuit that gives a true output (1) if one or more of its input are true.
• (+) is used to show the OR operation.
•  For a 2-input OR Gate, the output Q is true if either input “OR” input B is true.
• The Boolean expression of OR Gate is:

Q=A or B

•  An OR gate can have two or more inputs, its input is true if atleast one input is true.
•  OR is used to set the bits to one.
• symbol or truth table of the OR gate is as follows:

Circuit Diagram:

Result/Output:

The experiment was verified with validation from the truth table of OR gate.

 

For more, you can watch the video tutorial on Youtube:

Doorbell Ringer Experimet Video