28209374
Description
Flashcards by That Yeti Dog Person, updated more than 1 year ago
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Created by That Yeti Dog Person
over 3 years ago
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| Question | Answer |
| A _____ is any material that allows electrons to flow through it easily. | conductor |
| The term _____ is also used to refer to objects that are good conductors of electricity. | conductor |
| Conductors are rated and compared according to several different qualities. One such quality is _____. | conductivity |
| _____ is a measure of how easily electric current passes through a material. | Conductivity |
| The most common conductor in industrial circuits is _______. | copper wire |
| When certain metals are cooled to extremely low temperatures, they lose much of their resistance to electricity. This reaction is called ______. | superconductivity |
| When certain metals are cooled to extremely low temperatures, they lose much of their resistance to electricity. These certain metals are called ______. | superconductors |
| There are two basic types of copper wire: ____ and ____. | solid, stranded |
| _____ copper wire is used in the construction of panel boards for control systems. | Solid |
| _____ copper wire is used in most electrical circuits. | Stranded |
| The average stranded copper wire contains ___ to ___ strands inside its insulating jacket. | 16, 19 |
| To make copper wire, the copper is first _____ (or pulled) through a forming die to give it its diameter. | extruded |
| After the copper wire is extruded, it gets _____. | annealed |
| _____ is a process that heats and then cools copper wire to make it less brittle. | Annealing |
| Before copper wire is enclosed in an insulating jacket, it's often run through a bath of molten solder. This process is called _____. | tinning |
| _____ has two advantages: it makes the wire easier to solder, and it helps prevent oxidation. | Tinning |
| The size of an electrical conductor (ex. wire) is called its _____. | gage |
| In the US, wire sizes are gaged and numbered according to the ________. | American Wire Gage system |
| The abbreviation for American Wire Gage system is ____. | AWG |
| The ____ the gage number, the thicker the wire. | smaller |
| The ____ the gage number, the thinner the wire. | bigger |
| The ____ (smaller gage) the wire, the more current it can carry without overheating. | thicker |
| The largest available wires are gaged in ____ values. | MCM |
| The abbreviation MCM stands for _____________. | millions of circular mils |
| A ___ is a unit of measure equal to 0.001 inch. | mil |
| A ______ is a unit used to measure the area of a wire. | circular mil |
| The current-carrying capacity of a wire is called its _____. | ampacity |
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