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Author Question: Jadeen says that you can increase the resistance of a copper wire by hammering the wire to make it ... (Read 49 times)

Cooldude101

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on: Aug 6, 2020
Jadeen says that you can increase the resistance of a copper wire by hammering the wire to make it narrower and longer. Arnell says that you can increase its resistance by heating the wire. Which one, if either, is correct, and why?

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Arnell, because the resistivity of the wire increases when it is heated.

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Arnell, because the resistivity of the wire decreases when it is heated.

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Jadeen, because the resistivity of a wire is inversely proportional to its area and directly proportional to its length.

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Jadeen, because the resistivity of a copper wire does not decrease  when it is hammered.

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Both are correct because (a) and (d) are both correct.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by Cooldude101 on Aug 6, 2020

daiying98

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Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Cooldude101

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Reply 2 on: Aug 6, 2020
Wow, this really help

chereeb

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Reply 3 on: Yesterday
Gracias!

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