Question: Will doubling the separation distance between the charged rod and fur in Figure 26.1a increase, decrease, or not change the potential energy of the rod-fur

Will doubling the separation distance between the charged rod and fur in Figure 26.1a increase, decrease, or not change the potential energy of the rod-fur system?

Figure 26.1 When we charge a rubber rod and a piece of

Figure 26.1 When we charge a rubber rod and a piece of fur by rub- bing them together, we do work to separate charge and hence increase the electric potential energy of the system comprising the rod and fur. (a) Rubber rod and piece of fur: before rubbing after rubbing (b) Energy diagram for system of rod and fur AK AU , W

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