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Electric Charges and Fields
Question
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What kind of charges are produced on each when (i) a glass rod is rubbed with silk and (ii) an ebonite rod is rubbed with wool?

Answer

(i) Positive charge will be produced on glass rod and negative charge will be produced on silk. The electrons are less tightly bound in glass rod as compared to silk.

(ii) Negative charge will be produced on ebonite rod and positive charge will be produced on wool.

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Some More Questions From Electric Charges and Fields Chapter

a) An electrostatic field line is a continuous curve. That is, a field line cannot have sudden breaks. Why not?
b) Explain why two field lines never cross each other at any point?