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Two conducting spheres have charges of Qa = +3C and Qb = +1 C. They are touched together and then separated. Afterward, you measure

Two conducting spheres have charges of Qa = +3C and Qb = +1 C. They are touched together and then separated. Afterward, you measure the electrostatic force between them. You repeat the experiment, but this time you double the initial charge of both particles. The second experiment reveals that the electrostatic force has decreased. has doubled. has quadrupled. is unchanged.

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