CBSE Class 12-science Answered
Find the resistivity of a conductor in which a current density is
and electric field of 15Vm-1 is applied on it.
![](http://images.topperlearning.com/topper/questions/7585_image001.gif)
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
Let ‘l’ and ‘A’ be the length and area of cross-section of the conductor respectively.
Current density, ![](https://images.topperlearning.com/topper/questions/7585_image002.gif)
![](https://images.topperlearning.com/topper/questions/7585_image002.gif)
Electric field,
= 15 V m-1
![](https://images.topperlearning.com/topper/questions/7585_image003.gif)
Now, resistivity, ![](https://images.topperlearning.com/topper/questions/7585_image004.gif)
![](https://images.topperlearning.com/topper/questions/7585_image004.gif)
![](https://images.topperlearning.com/topper/questions/7585_image005.gif)
Answered by | 04 Jun, 2014, 15:23: PM
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