alleryAn electric dipole consists of charges +q and −q separated by 2a. The dipole moment magnitude is:
Aq · a
Bq · 2a
Cq² · a
Dq / (2a)
Answer & Solution
Correct answer: B. q · 2a
1. Dipole moment p = q × (distance between charges) = q · 2a.
2. p is a vector pointing from −q to +q.
3. SI unit: C·m.
_Source: syllabus Physics Ch 1 §1.8 Electric Dipole_
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