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physics

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When two bodies are charged, the total charge before and after charging remains the same because of:
A. quantization of charges
B. conservation of charges
C. law of induction
D. Coulomb's law
it is B?

When a conducting sphere is charged positively, intially the charge is deposited on the left side. However, due to the sphere's conducting nature, the charge spreads uniformly throughout the surface to the sphere. Charge is uniformly distributed because:
A. charged atoms at the location of charge distribute throughout the surface.
B. excess protons move from the location of charge to rest.
C. excess protons within the sphere move toward excess protons.
D. excess charge within the sphere moves out into the ground from the surface.
I think it is C?..or a?

  • physics -

    b for the first one. On the second, none of the answers are very good. Atoms do not move (a), Protons do not move(b,c), and d makes no sense as you have described it. In conductors, only electrons are free to move around.

    Go with answer d, the others are just plain wrong.

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