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1.Does electron has a charge 3.2*10^-19 C less than charge of proton. 2.Why does a phonograph -record attract dust particles just after it is cleaned? 3.Comment 4 pie lines of force originate from each unit positive charge rather 4 pie is not an integer. 4.does paper become charged when a charged comb is brought near small pieces of paper get attracted by it.

1.Does electron has a charge 3.2*10^-19 C less than charge of proton.
2.Why does a phonograph -record attract dust particles just after it is cleaned?
3.Comment 4 pie lines of force originate from each unit positive charge rather 4 pie is not an integer.
4.does paper become charged when a charged comb is brought near small pieces of paper get attracted by it.

Grade:11

1 Answers

Aman Bansal
592 Points
12 years ago

Dear Vikash,

1.There are two kinds of charges. It was a historical accident to name one of it + and the other -

The ancient name for + was vitreous and that of – was resinous.

The magnitude of charge for proton and electron are the same but the nature of charge is different.

2.the rubbing on some surfaces make them charge..

 phonograph-record is one of them.....

static charges appear on the disk as they r rubbed.... other ex are comb, plastic chairs (beaten up by toowel) etc.

these charges attract dust particles( -ve charges, usually)...........!!!

soon after cleaning..!!!

Best Of luck

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