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Answer to Question #44144 in Electromagnetism for Abu bakar

Question #44144
Question. No: 3
A person walks by. And the person contains electrons. Therefore, there is a presence of current. Either yes or no justify this statement with reason.
Question. No: 4
A rubber balloon has a lot of extra electrons deposited on it, giving it a negative charge. When the balloon is brought near an uncharged metal sphere as shown in figure:
Select one the most closely related choice given below and write the reason of your selected choice as well. Marks 3+4 = 7
a) Electrons from the sphere will be attracted to the balloon and leap from the sphere to the balloon
b) Protons from the sphere will be attracted to the balloon and leap from the sphere to the balloon
c) The balloon will attract electrons in the sphere and repeal protons in the sphere, so the net force on the sphere is zero
d) The balloon will attract electrons in the sphere and attract protons in the sphere, so the net force on the sphere is zero
e) The balloon will cause a polarization of charge in the sphere
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