Coulomb's Law: One Very Small Uniformly Charged Plastic Ball Is

question 19

Multiple Choice

Coulomb's law: One very small uniformly charged plastic ball is located directly above another such charge in a test tube as shown in the figure. The balls are in equilibrium a distance d apart. If the charge on each ball is doubled, the distance between the balls in the test tube would become

• A) d.
• B) 2d.
• C) 4d.
• D) 8d.

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