Two equal positive charges are kept at points A and B. The electric potential at the points between A and B (excluding these points) is studied while moving from A to B. The potential
Text Solution
Verified by ExpertsD
decreases then increases
Let the distance between the points A and B be r.
Let us take a point P at a distance x from 
.
Electric potential V at point P due to two charges of equal magnitude q is given by
Now, differentiating V with respect to x, we get
Therefore, 
.
It can be observed that 
for 
.
Thus, the potential is decreasing first.
At 
, the potential is minimum.
As
for 
, the potential is increasing after 
.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems