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The electric dipole moment of a dipole points
Afrom the positive to the negative charge
Bperpendicular to the dipole axis
Cfrom the negative to the positive charge
Dalong the external field always
Answer & Solution
Correct answer: C. from the negative to the positive charge
1. The dipole moment magnitude is $p = q\,(2a)$ where $2a$ is the separation.
2. By convention $\vec{p}$ is directed **from the $-q$ charge to the $+q$ charge**.
3. Its SI unit is coulomb metre (C m).
_Source: Samacheer Kalvi Class 12 Physics Vol.1, Unit 1 'Electrostatics', §1.4.1_
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