Arnav Prasad
Last Activity: 9 Years ago
Since your question’s diagram is not available, the question can’t be solved.
But as a knowledge complement, for being a Dipole, two charges of EQUAL and OPPOSITE Signs must exist. This is important.
You can calculate dipole moment by taking product of Magnitude of any one of those Charges and the Distance between their centres.
Your question maybe be valid of the charge +2Q is placed exactly “in” or just near to one of the charges –Q seperated by distance D.
Answer shall be = QD.