Page 6 - The Basics IA by ETron Circuit Labs

ENucleus made up of neutrons (no electrical charge) and protons (positive charge)Tron Circuit LabsElectrons (negatively charged)NeutronsProtonsPicture of a Simple Circuit“I” Electron CurrentVoltage = source of power “E”“R” Wire is a path for ElectronsLab 1 Basic CircuitsBasic CircuitsThis lab is a hands-on experiment lab to help you learn electronics. You will make many electronic circuits and learn how they work.The AtomAs you may remember from your science lessons, all matter is made of atoms. Atoms have electrons in orbits around the nucleus. See diagram at left.When electrons move from the outer ring of one atom to the outer ring of another atom, this is called electron flow. Wire has lots of atoms with electrons that can move from atom to atom.Electronic CircuitsA simple circuit has 3 things:VOLTAGE, RESISTANCE & CURRENTVOLTAGE is represented by the letter “E”RESISTANCE is represented by the letter “R”CURRENT is represented by the letter “I”In the Circuit show on the left, electrons flow from the negative terminal of the battery, through the wire, through the Resistor, and then to the positive terminal of the battery. The amount of electrons that will flow depends on the resistance in the Resistor. The negative side of the battery has millions of electrons. The positive side lacks electrons.In the circuit shown below, the flow of electrons will go from the negative of the battery through the wire, the LED, the resistor, and to the positive of the battery. The flow of electron current will cause the LED to light up.+ -4