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Homework Statement
A charged rod of charge 'q' is at a distance 'd' from a perfect conductor as shown below.
What's the total surface charge on the conductor?
2. Homework Equations
I tried to solve this without equations.
The Attempt at a Solution
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Basically, as long as there is E field due to +q, it can draw a negative charge from the conductor to the surface. This would stop once the total E field on a point charge at infinity goes to 0. This should happen when the total charge on the surface is exactly q. Is this explanation correct?
However, what's bothering me is the nondependence on distance 'd'. If d> ∞, then I wouldn't expect 'q' draw any charge on the conductor since E field would be zero at d> ∞. Then what's wrong here?
Also, does this explanation work even if this conductor is not perfect (has a σ≠∞)
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