Asked by Avery Williams
You rub a balloon on your head and it becomes negatively charged. The balloon will be MOST attracted to:
A. A piece of metal.
B. Positively charged hair.
C. The neutrally charged wall.
D. Another negatively charged balloon.
All Answers 1
Answered by
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B. Positively charged hair.
Opposite charges attract, so a balloon that has gained electrons will be strongly attracted to hair that lost electrons and is positively charged. A neutral wall or metal can also attract the balloon by induced polarization/charge separation, but that attraction is generally weaker than the direct Coulomb attraction to an opposite charge. Two negatively charged balloons repel.
Opposite charges attract, so a balloon that has gained electrons will be strongly attracted to hair that lost electrons and is positively charged. A neutral wall or metal can also attract the balloon by induced polarization/charge separation, but that attraction is generally weaker than the direct Coulomb attraction to an opposite charge. Two negatively charged balloons repel.
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