How can we reduce 12V to 3V by simply using a resistor? - Quora
Como calcular o resistor adequado para um LED.
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The maximum value of function f(x) = 3x^3 - 18x^2 + 27x - 40 on the set S = {x ∈ R : x^2 + 30 < 11x } is:
Guide to LEDs and resistors
Como calcular o resistor adequado para um LED.
Stak - Resistors for use with LEDs - 3.3V, 5V, 6V, 9V, 12V - 100 pack
automotive - I'm trying to use 3v LEDs in a 12V circuit, in my car - Electrical Engineering Stack Exchange
Choosing the Resistor to Use With LEDs : 3 Steps - Instructables
How to Light up 3v LED with 220v Power using Diode 1N4007 and 100k Resistor - YouTube | Diode, Electronics mini projects, Led diodes
LM317-ADJ Resistor Value and Circuit for 3.3V,5V,12V,15V,18V | Circuit Ideas I Electronic DIY Projects I Robotics
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100 pcs 620 OHM Resistors / Use 3V LEDs or Bulbs on 12V | eBay
12v to 3v Converter Use Only 1Resistor or Zener || 12v to 3v 5v 6v Convert ||12v to 5v Converter - YouTube
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3v To 12v Boost Converter | Experiment - YouTube | Electronic schematics, Electronics projects, Hobby electronics
3) Resistors and Power Considerations - BrainSTEM Education
12V To 3V Converter Using BD139 NPN Transistor
How To Run Mini Led In 3v,5v,8v,12v,18v,24v,220v Using Resistor. - YouTube
