- #1
irishbob
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Homework Statement
Two solid spheres, both of radius 5 cm, carry identical total charges of 2 microcoulombs. Sphere A is a good conductor. Sphere B is an insulator, and its charge is distributed uniformly throughout its volume. How do the magnitudes of the electric fields they separately create at a radial distance of 6 cm compare?
A: Ea>Eb=0
B: Ea>Eb>0
C: Ea=Eb>0
D: Ea=Eb=0
E: 0<Ea<Eb
F: 0=Ea<Eb
How do the magnitudes of the electric fields they separately create at radius 4 cm compare? Chose from the same possibilities.
Homework Equations
E=K[tex]\frac{q}{r^2}[/tex]
The Attempt at a Solution
Well I think it's C for both, but for some reason I'm not confident. I just want to make sure I'm understanding the question. So it's only asking about the electric field at a given point 6 (and 4) cm away without them anywhere near each other, meaning their fields are not interacting at all. Is this right?
This isn't for webassign, so I have no way to confirm.
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