A straight wire of length l and electric dipole moment p is bent to form a semicircle. The new dipole moment would be

- a)p/2
- b)2p/π
- c)p/2π
- d)2p

Correct answer is option 'B'. Can you explain this answer?

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4 Answers

Aniket Das
answered
Aug 13, 2018

L=piÃ—r , r=L/pi , new dipole moment =qÃ—2r(2r=diameter) p'=qÃ—2L/pi , p'=2p/pi(as given, p=qr)

Pradeep Singh
answered
2 weeks ago

Electric dipole moment = qÃ—2l

according to question it will form semicircle,

so applying that formula you will get your answer

according to question it will form semicircle,

so applying that formula you will get your answer

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