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T1W7 AI - EES 10

Electronic Circuit Assembly

TermDefinition
Breadboard a reusable tool used to build and test temporary electronic circuits without any soldering.
Active buzzer Emits a continuous tone when it receives power.
Battery Source of electrical energy. Supplies 9 volts DC to the circuit.
Push button switch Used to open or close the circuit.
Light Emitting Diode (LED) Lights up when current flows through it, serving as a visual indicator.
1 kΩ Resistor Limits the current flowing through the LED to prevent it from burning out.
Safety Precautions in electronic circuit assembly Ensure power is OFF before wiring Check polarity of components Use insulated tools
2N2222 NPN Transistor Used as a low-side switch to control the buzzer.
Photoresistor (LDR) Senses light levels.
Jumpers For easy wiring
Light-Activated Buzzer Circuit (LDR and 2N2222 Transistor) 1. Insert the 2N2222 transistor into the breadboard and identify its pins: Emitter (E), Base (B), and Collector (C). 2. Connect the active buzzer: Negative (-) pin → Collector of the transistor Positive (+) pin → VCC (positive power rail) 3. Conne
Created by: Teacher Meow
 

 



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