Q. The electric dipole moment of an electron and a proton 4.3 nm apart is
A) $6.88 \times 10^{- 28}cm$
B) $2.56 \times 10^{- 29}c^{2}/m$
C) $3.72 \times 10^{- 14}c/m$
D) $11 \times 10^{- 46}c^{2}/m$
Explanation
(a) Dipole moment $d = q \times r$
$= 1.6 \times 10^{- 19} \times 4.3 \times 10^{- 9}$ Coulomb metre
$= 6.8 \times 10^{- 28}Cm$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.