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# Lesson 1.1

Term | Definition |
---|---|

Analog | A way of representing some physical quantity, such as temperature or velocity, by a proportional continuous voltage or current. An analog voltage or current can have any value within a defined range. *My clock is analog because it's continuous (seconds) |

Breadboard | A circuit board for wiring temporary circuits, usually used for prototypes or laboratory work. *A breadboard would be ideal for the trial and error process |

Conventional Current | The direction of current flow associated with positive charge in motion. The current flow direction is from a positive to negative potential, which is in the opposite direction of electron flow. * |

Current | A movement of electrical charges around a closed path or circuit *The current is can't flow because there is a gap |

Digital | A way of representing a physical quantity by a series of binary numbers. A digital representation can only have specific discrete values. *A digital thermometer does not show you temperature constantly, it just tells you whenever it changes |

Digital Multi-Meter (DMM) | A piece of test equipment used to measure voltage, current, and resistance in an electronic circuit DMM tells us the voltage running through the circuit is -4.75 |

Engineering Notation | A floating point system in which numbers are expressed as products consisting of a number greater than one multiplied by an appropriate power of ten that is some multiple by three. Engineering Notations make calculations easier |

Kirchhoff's Current Law (KCL) | Th algebraic sum of all currents into and out of any branch point in a circuit must equal 0 KCL does not allow the sum of currents to equal 1 |

Kirchhoff's Voltage Law (KVL) | The algebraic sum of all voltages around any closed path must equal 0 Zack's calculations are wrong because he got 2 and KVL doesn't allow that |

LED | Light-emitting diode. An electronic device that conducts current in one direction only and illuminates when it is conducting. My TV's LED screen is amazing |

Ohm | Unit of resistance. Value of 1 ohm allow current of one ampere with potential difference of one volt. Ohm's can be measured with a DMM |

Ohm's Law | In electric circuits, I=V/R You can't find the OHM without voltage and ampere. |

Parallel Circuit | One that has two or more branches for separate currents from one voltage source A parallel circuit allows you to remove certain outlets and still allow the circuit to be closed and function properly. |

Resistor Color Code | Coding system of colored stripes on a resistor to indicate the resistor's value and tolerance You don't want the Resistor Color Code to pull up a not so good color (?) |

Scientific Notation | Numbers entered as a number from one to 10 multiplies by a power of 10 Scientific Notation and Engineering notation serve the same purpose |

Series Circuit | One that has only one path current. If you remove an outlet in a Series Circuit, the circuit will open and stop working |

SI Notation | Abbreviation of System International, a system of practical units based on the meter, kilogram, second, ampere, kelvin, mole, and candela An example of SI Notation would be for I representing ampere |

Solder | Metallic alloy of tin and lead that is used to join two metal surfaces. A solder is used a lot in the production of digital electronics |

Soldering | Process of joining two metallic surfaces to make an electrical contact by melting solder (usually tin and lead) across them Soldering allows certain connections on a motherboard to happen |

Soldering Iron | Tool with an internal heating element used to heat surfaces being soldered to the point where the solder becomes molted Be careful of the fumes Soldering Iron can omit. |