Parts and tools
Parts and tools
This
module will be a hands-on walk-through of simple experiments with
circuits. Here is a list of parts you will need:

Breadboard
A breadboard is what we will use to make connections between different parts and test circuits in a fast and easy way. In its modern form it has nothing to do with bread, but its name comes from the first testing circuit boards that were basically nails on a piece of wood/cutting board!
9V battery
We will use the battery to power our circuits.
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9V battery cap and DC jack
These connectors will be used to attach the battery to the breadboard.

A few LEDs
Light-emitting diodes (LEDs) are electronic components that are designed to light up under certain conditions in a circuit.

Some resistors
Resistors are electrical components that limit the flow of electrical current in a circuit.

10K potentiometer/trimmer
Potentiometers and trimmers are variable resistors; resistors that change their value (how much they limit flow of current) according to a physical component, like a screw.

Jumper wires
Jumper wires are removable wires used to connect components together and to the breadboard when testing circuits.