Conductors (Mod. 2 pt1)

Questão	Responda
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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Conductors (Mod. 2 pt1)

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	Criado por That Yeti Dog Person quase 4 anos atrás