A balloon and a section of a wall both have neutral charges, as shown below.

Question

A student rubs his hair on the balloon, giving it a negative charge. How will the charges be arranged in the wall when it is placed near the negatively changed balloon?

(1 point)
Responses

The wall will now have all positive charges and no negative charges
The wall will now have all positive charges and no negative charges

The charges in the wall will not change or rearrange at all.
The charges in the wall will not change or rearrange at all.

The wall will have its positive charges on the side closer to the balloon
The wall will have its positive charges on the side closer to the balloon

The wall will have negative charges on the the side closer to the balloon
The wall will have negative charges on the the side closer to the balloon
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Answer 1

When a negatively charged balloon is placed near a neutral wall, the negative charges (electrons) in the wall will be repelled by the balloon, while the positive charges (protons) in the wall will be attracted to the balloon. This causes a redistribution of charges within the wall.

As a result, the side of the wall that is closer to the negatively charged balloon will have an accumulation of positive charges due to the attraction of the protons, while the negative charges will be pushed away to the opposite side of the wall.

Therefore, the correct response is:

The wall will have its positive charges on the side closer to the balloon.