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The resistance of a wire depends on the following: the ____ of the wire, the _______ of the wire, the ____ of the wire's material, and the wire's _____.
The length of a wire affects the resistance of the wire. This is a ____ relationship: if you double the length of a wire, its resistance will also be doubled.
The cross-sectional area of a wire affects the resistance of a wire. This is an _____ relationship: if you increase the cross-sectional area of a wire, its resistance will decrease and vise versa.
_____ is a measure of how much resistance a material has for a given length and cross-sectional area.
Resistivity is represented by the Greek letter __.
The equation that shows how the length, cross-sectional area, and resistivity are related to the resistance of a wire is: ______.
Most pure metals undergo an increase in resistance with an increase in temp. When a metal, such as copper, does this, it's said to have a ________________.
There are some materials that undergo a decrease in resistance when there's an increase in temperature. Those materials are said to have a _______________.
Another effect of temperature on metals and other materials is _____ and _____.
Most materials ______ when their temperature increase.
Most materials _____ when their temperature decreases.
A measure of the amount of increase in volume with a n increase in temperature is called the _____________________.
If a material contracts when it's heated, it has a ___________.
There are two important characteristics of copper wire that aluminum wire can't match: copper wire is a good conductor of ____, and copper used for wire is a _____ material.
In the building construction industry, the maximum current allowed for each wire size is called its _____.
When a material is _____ it is capable of being easily shaped.
Ampacity is the combination of two words: _____ and _____.
Three popular methods of tying cables together are ______, ________, and _____.
In the _______ process, a group or bundle of wires is secured together with individual ties. This method is often used when wiring panels.
In the ________ process, a group or bundle of wires is secured together with a continuous cord that forms loops at regular intervals.
Other wire grouping methods include plastic ties and clips that are used to hold wires together and also hold them to a panel. Prefabricated wire groups called _____ are also available from some manufacturers.
A _____ is a group of wires bundled together to make a single unit.
Some special types of cables are designed for use in high-frequency applications, _____ cables are an example.
The two most popular types of cables are _____ and _____.
The important thing to remember about coaxial cables is to never ____ their two types of hardware.
_________ are special cables that are often used to carry power. (ex. power lines)
Some important parts of a computer system are the pathways used to get information ____ and ____ of the computer,
The pathways in a computer system that are used to carry information in and out of the system are called _______.
A computer _____ is any external device that provides input and output for the computer.
A keyboard and a mouse are examples of an _____ device.
A printer and a monitor are examples of an ____ device.
_________ - has 2 conductors; The outer conductor is a shield made with braided wires. The inner conductor is a solid-copper wire.; some versions have 2 inner conductors
_____ are colored threads that are visible when the insulation is removed from a wire.
A _____ cable consists of several insulated wires connected together to form a flat ribbon.
Some ribbon cables have terminations called _________. They're designed in such a way that unused pins can be purposely snapped off.
A _______ is a device that splits a multi-wire line into several connectors. This makes troubleshooting easier.
Two materials used to make fiber-optic light conductors are _____ and _____.