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Grade: 12th pass

                        

Potential at two points are given due to charge present at origin. We have to calculate potential at third point given due to the same charge

Potential at two points are given due to charge present at origin.
We have to calculate potential at third point given due to the same charge

10 months ago

Answers : (2)

Parth
58 Points
							
See the potential diifference at any distance r from q charge, is given by  k*q/r.
I above case the the potential at origin will not be zero so
Potential at any distance r will be  = V’ + k*q/r, where V’ = potentail at origin .
let k*q = p
now you have three equation and three variables
V’ + p/2 = 15
V’ + p/(1/2) = 30 
V + p/1 = your ans 
on solving you will get V’ = 10 and p = 10
so you ans will be 20 volts – option C
10 months ago
Vikas TU
14148 Points
							
Dear student 
Hope your doubt gets cleared 
Please refer the solved examples of the below link 
10 months ago
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