Answers

2016-01-12T17:55:20+05:30
If we brought charged plastic strip to another then firstly they attract and then repel.
As one is charged and other is neutral so particles from charged move to neutral and after getting balanced both ( having equal charged particles) they repel. 
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2016-01-13T21:36:51+05:30
The charged plastic will pull the straw
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