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the electric field in a region is directed outwards and is proportional to the distance r from the origin Taking the electric potential at the origin to be zero the potential at a distance r a increases as one goes away from the origin b is proportional to r^2 c is proportional to r d is uniform in the region

the electric field in a region is directed outwards and is proportional to the distance r from the origin Taking the electric potential at the origin to be zero the potential at a distance r
a increases as one goes away from the origin
b is proportional to r^2
c is proportional to r
d is uniform in the region

Grade:12

3 Answers

Shubham Swastik Behera
43 Points
8 years ago
I guess B.
E=-(del V/del r), del V=-(E . del r), integrate both sides considering E=kr (as field is proportional to radial distance).
Thus, 
V=k(r^2)/2.
Thus proportional to r^2.
Cheers!!
 
 
 
Mohit Chhabra
18 Points
8 years ago
sorry buddy answer is c
tell me if you get it
Shubham Swastik Behera
43 Points
8 years ago
I found the same question online:
 As they donot allow external links in the answer so I’m unable to give u the direct link but u can enter “potential in a region where field is proportional to r” into Google and click the second link from the top (the one from topcoaching).
 
Hope this helps. Let me know if u have an solution for C. Cheers!!
 

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