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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 ra increases as one goes away from the originb is proportional to r^2c is proportional to rd is uniform in the region

Mohit Chhabra , 9 Years ago
Grade 12
anser 3 Answers
Shubham Swastik Behera

Last Activity: 9 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

Last Activity: 9 Years ago

sorry buddy answer is c
tell me if you get it

Shubham Swastik Behera

Last Activity: 9 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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