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Grade 12Electrostatics

Two charge q &-2q are placed at some distnace the locus point in the place of the charge,where the potential is be zero?
A.-Circle
B.-Ellipse
3.-parabola

Profile image of suryansh
12 Years agoGrade 12
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4 Answers

Profile image of Sher Mohammad
12 Years ago
Ans is A:Circle
let charge q is at (0,0)and -2q at(r,0)
any point is (h,k)
potential is zero so kQq/sqrt(h^2+k^2)=2kQq/sqrt((h-r)^2+k^2)
=> 4(h^2+k^2)=((h-r)^2+k^2)
=>3h^2+3k^2+2rh-r^2=0 its circle

Sher Mohammad, IIT Delhi
faculty Askiitians

Profile image of aswanth
12 Years ago
Circle
 
Profile image of aswanth
12 Years ago
circle
Profile image of Pinku
11 Years ago
Answer is circle

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