resistance coursework

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Issue:

Science

 

Written by:

Grace P

 

Date added:

January 23, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

5 / 1136

 

Was viewed:

8731 times

 

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Essay content:

Therefore V ? I is constant. This means that the resistance of a metallic conductor is constant providing that the temperature also remains constant. Furthermore, the resistance of a metal increases as its temperature increases. This is because at higher temperatures, the particles of the conductor are moving around more quickly, thus increasing the likelihood of collisions with the free electrons...
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This could be either it has a closer ions or more ions than other metals. For example Copper has a low resistance due to the arrangement of its ions. ? Temperature: A rise in temperature causes ions inside the metal to vibrate more causing electrons to collide into them this builds resistance; therefore the electrons find it harder to get through the wire...
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