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What is it?
A component whose entire job is adding a specific amount of resistance. Those colored stripes? They're a code that tells you exactly how many Ohms.
The Simple Analogy
“A speed bump for electricity. Protects LEDs from burning out.”
All Concepts
What is Electricity?What is Voltage?What is Current?What is Resistance?What is a Resistor?What is a Diode?What is an LED?What is a Capacitor?What is a Transistor?What is a Microcontroller?What is an Electron?What is a Conductor?What is an Insulator?What is Electrical Isolation?What is a Battery?What is an Arduino Board?What is a Switch?What is a Circuit?What is Transconductance?What is Frequency?What is a Signal?