This electronics video tutorial explains how to create a night activated LDR sensor circuit using light dependent resistors. This circuit turns on a green LED in the dark. The green LED turns off when light shines on the LDR. It also explains how to create a light activated LDR circuit that causes the LED to turn on when the main light is on.
Transistors - NPN & PNP:
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BJT Transistors - Electronic Switches:
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Finding The DC Load Line & Q-Point:
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Voltage Divider Bias Circuit:
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Collector Feedback Bias Circuit:
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Emitter Feedback Bias Circuit:
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Common Emitter Amplifier:
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Common Collector & Base Amplifier:
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Darlington Pair & Beta Current Gain:
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Class A, AB, B, & C Amplifier Circuits:
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Voltage Gain of Transistor Amplifier:
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Multistage Transistor Amplifier Circuit:
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Transistor Audio Mixer Circuit:
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Operational Amplifiers:
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Summing Amplifiers:
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LM386 Audio Amplifier:
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LC Oscillator Tank Circuit:
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Final Exams and Video Playlists:
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Full-Length Videos and Worksheets:
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Light Dependent Resistors: [ Ссылка ]
Alligator Wires: [ Ссылка ]
NPN Transistors: [ Ссылка ]
LED Assortment Kit: [ Ссылка ]
9V Battery Clip: [ Ссылка ]
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