3. Consider three charged metal spheres. Each sphere has a total positive charge

Question

3. Consider three charged metal spheres. Each sphere has a total positive charge of one Coulomb o The first sphere is 2 cm diameter in air. (Er 1) o The second is 2 cm diameter, embedded in plastic with dielectric constant, Er J 3.2 o The third is 1 cm diameter, embedded in plastic with dielectric constant, Er 5.8 All materials are linear and isotropic. The spheres are shown schematically below along with the following points: o Points A, B and C are exactly 2 cm from the center of their respective spheres. o Points D, E and F are exactly 0.25 cm from the center of their respective spheres (inside the metal sphere) Er 2.3 Er 5.8 2 cm 2 cm

Explanation / Answer

1. Can't tell

2. All same

3. B

4. All same

5. can't tell

6. all same

7. B

8. C

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