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 one year ago
Circuits: A certain material has a voltage of 120 V across 10 A and the length of the wire is 25 m, while the diameter is 5 mm. What it its resistivity?
 one year ago
Circuits: A certain material has a voltage of 120 V across 10 A and the length of the wire is 25 m, while the diameter is 5 mm. What it its resistivity?

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jennychan12
 one year ago
Best ResponseYou've already chosen the best response.1\[V = IR\] \[P = IV\] \[R = \frac{ \delta L }{ A }\] i used the first one (R=V/I) is that right?

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.1and you're not given the constant.

modphysnoob
 one year ago
Best ResponseYou've already chosen the best response.1so first find the resistance

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.1yeah i got that 12 ohms

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.1using the first formula right?

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.1that's it? but what are the length and diameter given for?

modphysnoob
 one year ago
Best ResponseYou've already chosen the best response.1once you find R , use that and given diameter and length to find resistivity which is \[\delta\]

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.1_ grr. i thought the R was the resistivity.. fdjsalkfhdjkshfklhg got that question wrong on the quiz >:(

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.1oh okay. my teacher didn't explain clearly. :(

modphysnoob
 one year ago
Best ResponseYou've already chosen the best response.1well, you know now, will help you in future exam
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