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You have four neutral conducting spheres and a charging device that allows you to place charge...

You have four neutral conducting spheres and a charging device that allows you to place charge ? on any neutral object. You want to charge one sphere with a charge ?/2 and the other three with a charge ?/6 How do you proceed?

A. Charge one sphere with charge ?. Touch it simultaneously to the three remaining neutral sphere.

B. Charge one sphere with charge ?. Touch it to one other sphere to produce two spheres with charge ?/2. Touch one of these spheres to one other neutral sphere.

C. Charge one sphere with charge ?. Touch it to one other sphere to produce two spheres with charge ?/2. Touch one of these spheres simultaneously to the two remaining neutral spheres.

D. Charge one sphere with charge ?. Touch it simultaneously to two other neutral spheres to produce three spheres with charge ?/3. Touch one of these spheres to one other neutral sphere.

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