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`        A charge of magnitude q is divided into two parts such that force between resulting two charges is maximum when separated through some distance r.The division of charges would be`
6 months ago

Arun
23390 Points
```							F = K*[q1*q2]/r², q1+q2=QTo maximize F(q1,q2) is to maximize q1*q2 so dF/dq=0rewriting :F(q1) = K*[q1*(Q-q1)] / r² => F(q1) = K*[q1Q-q1²)] / r²dF(q1)/dq1 = [K/r²]* [Q-2q1] = 0 so Q- 2q1 = 0 .: q1 = Q/2 and q2=q1.Remember and keep this result : the maximum A*B you can get is when A=B.Any field.PSAbout distance. F(r) max occurs when r -> 0 so 1/r ² -> infinite
```
6 months ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions