Conducting Spheres in Electrostatic Equilibrium

AI Thread Summary
The discussion revolves around solving a homework problem related to conducting spheres in electrostatic equilibrium. The user applied the equation for electric potential and the conservation of charge to find the charge on one of the spheres. However, their calculated value for q3 was incorrect, yielding 0.0002 instead of the expected 2.06*10^-4. The user seeks assistance to resolve this discrepancy in their solution. Clarification on the application of the equations and the conditions for electrostatic equilibrium is needed to arrive at the correct answer.
the-alchemist
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Homework Statement



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Homework Equations



potential, V = kq/r where k is 1/4 pi epsilon

conservation of charge, sum of q = Q

The Attempt at a Solution



what i did is let q1 + q2 + q3 = 4*10^-4

then let V1 = V2 = V3 and solve for q3

but i end up getting q3 = 0.0002 which is not the correct ans, which is c, 2.06*10^-4
 
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any help? much appreciated!
 

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