Dipoles Return...

Q) Charges 2q, 2q, -4q are placed at the vertices of an equilateral triangle of side length a.
Find the Dipole moment of the system.

1st tell me - where is the concept of dipoles coming?
HCV writes that charges that are equal in magnitude constitute a dipole.....but here they are not so...[2]

3 Answers

106
Asish Mahapatra ·

u can consider the -4q as two -2q's hence there will be two separate dipoles which have equal and opposite charges

11
Devil ·

H'mmm.....that maybe the case....it never appealed to me...thanx.

24
eureka123 ·

or u may cosnider 2 2q as a combined charge of 4q...
and then this combined 4q with -4q already present form a dipole

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