Learn electronics by building and testing circuits in this interactive simulator!
Build a simple circuit that lights up the LED when the switch is closed. Use a battery, resistor, LED, and switch.
Battery: Provides electrical energy (9V)
Resistor: Limits current flow (220Ω)
LED: Light Emitting Diode - lights up when current flows
Switch: Opens or closes the circuit
• Current flows from positive to negative terminal
• A complete path (closed circuit) is needed for current to flow
• LEDs require a resistor to prevent damage from too much current
• Voltage is shared across components in series