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1.1 Key Terms
Foundations in Electronics
| Term | Definition | |
|---|---|---|
| Analog | A way of representing some physical quantity, such as temperature or velocity, by a proportional continuous voltage or current can have any value within a defined range | |
| Conventional Current | The direction of current flow associated with positive charge in motion. The current flow direction direction is from a positive to negative potential, which is in the opposite direction of eelctron flow | |
| Current | A movement of electrical charges around a closed path or circuit | |
| Digital | A way of representing a physical quantity by a series of binary numbers. A digital representation can have only specific discrete values | |
| Digital Multi-meter | A piece of test equipment used to measure voltage, current and resistance in an electronic circuit | |
| 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 of three | |
| Kirchoff's Current Law | The algebraic sum of all currents into and out of any branch point in a circuit must equal zero | |
| Kirchoff's Voltage Law | The Algebraic sum of all voltage around any closed path must equal zero | |
| LED | Light Emitting Diode. An electronic device that conducts current in one direction and illuminates when it's conducting | |
| Ohm | Unit of resistance. Value of one ohm allow current of one ampere with potential difference of one volt. | |
| Ohm's Law | In electric circuits, I=V/R | |
| Parallel Circuit | One that has two or more branches for separate current from one voltage source | |
| Resistance | Opposite to current.Unit is the Ohm | |
| Resistor color code | Coding system of colored stripes on a resistor to indicate the resistors value and tolerances | |
| Scientific Notation | Numbers entered as a number from one to ten multiplied by a power of ten | |
| Series Circuits | One that has only one path current | |
| SI Notation | Abbreviation for System International, a system of practical units based on the meter, kilogram, second, ampere, kelvin, mole, and candela | |
| Solder | Metallic Alloy of tin and lead that is used to join two metal surfaces | |
| Soldering | Process of joining two metallic surfaces to make an electrical contact by melting solder across them | |
| Soldering Tool | Tool with an internal heating element used to heat surfaces being soldered to the point where the solder becomes molten. | |
| Breadboard | A circuit board for wiring temporary circuits, usually used for prototypes or lab work |
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