Two-point charges of equal magnitude 0.01 C and opposite in sign are separated by 0.2mm, forming an electric dipole. The electric dipole moment of the dipole is:

Step-by-step solution

Magnitude of charge, q = 0.01 C = 10⁻² C Separation between charges, d = 0.2 mm = 0.2 10⁻³ m = 2 10⁻⁴ m Electric dipole moment, p = q d p = 10⁻² 2 10⁻⁴ = 2 10⁻⁶ C m The direction of the electric dipole moment vector is conventionally taken from the negative charge to the positive charge along the line joining the two charges. Answer: 2 10⁻⁶ Cm along the line joining the two charges and the direction of the dipole moment vector is from negative to positive 0.01 C