An identical, but charged ball on an insulating stand was brought to an uncharged ball hanging on a thread.

An identical, but charged ball on an insulating stand was brought to an uncharged ball hanging on a thread. Will an uncharged ball interact with a charged one and, if so, how: attract or repel? Does the result depend on what the balls are made of: a conductor or a dielectric?

The balls will attract regardless of the material from which they are made.

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