anonymous
  • anonymous
if any particle is getting attracted by keeping source in front of it so can we say that particle must be charged??
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Mani_Jha
  • Mani_Jha
If the source is also charged, we can't really. Because the particle might be neutral too. Rub a comb/scale with cloth, and place it near tiny bits of paper. The neutral bits of paper get attracted to the charged comb. P.S Repulsion is the sure test of charge. A charged source may attract both charged and neutral particles, but it will repel only another charged particle. So, if the particle is repelled from the source, then you can bet a million rupees that the particle is charged!
experimentX
  • experimentX
Neutral particles are not attracted by the source ... they are unaffected by the field of source. If a particle is attracted to source, means there is force involved, most likely electrostatic or magnetic ... if it is electrostatic, then definitely, the particle must be charged.
Mani_Jha
  • Mani_Jha
Ok, but why does the charged comb attract the (neutral) paper bits then?

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anonymous
  • anonymous
well netral particles also get attracted by the source as source creates polarisation in neutral atom @experimentX
experimentX
  • experimentX
yea i agree to that ... polarization causes neutral substances to succumb to field. let's not say particles then.
anonymous
  • anonymous
hmm ok and here in the case of comb here too no charge is formed only polarisation is developed due to friction(source)
anonymous
  • anonymous
i m closing this qn i have one more interesting qn
experimentX
  • experimentX
the charged is developed on comb by friction ... but surely I would like to answer that why comb attracts neutral paper.
anonymous
  • anonymous
ok i ll ans ur doubt aftr dat qn as i think u urself get the anss of ur doubt :)
anonymous
  • anonymous
ok wen u keep source (comb) nearby neutral paper |dw:1333633137763:dw| u see in neutral atom comb bound the charge one side and der u ll find free -ve charge
anonymous
  • anonymous
u see neutral atom is not charged it get polarised
experimentX
  • experimentX
i see.
anonymous
  • anonymous
:)
anonymous
  • anonymous
i studied such stuff today and thought to share wid the physcs lovers :)
experimentX
  • experimentX
so ... it was due to polarization.
anonymous
  • anonymous
yes :) not due to charge it is because polarisatio u urelf think if it is due to charge den everytime wen u keep magnet nearby it it get attracted isntd??

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