Circuit #1 Blinking LED
Circuit 2
The potentiometer is causing the LED to restit electricity.
What is a Potentiometer
A potentiometer is a variable resistor that lets you adjust the flow of electricity in a circuit. It has three connections: one to a voltage source and two for output adjustment. Turning the knob changes the resistance and affects the voltage. You’ll often see them in volume controls and other electronic devices. A potentiometer is an adjustable resistor used to control voltage in a circuit. It has three terminals: one for voltage input, one for ground, and a middle wiper that slides along a resistor track.
Circuit 3
The LED is changing and flashing
Circuit 4