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Question

Why does a straw get attracted towards another straw which is rubbed with a sheet of paper?

A

Due to friction force

B

Due to electrostatic force

C

Due to magnetic force

D

Due to gravitational force

Medium

Solution

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Correct option is
B

Due to electrostatic force

When a substance is rubbed, it acquires charge on its surface which leads to development of electrostatic force. In above example force acting is electrostatic force.

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