1Which is the dimensional formula of electric dipole moment?
Electric dipole moment works out to [L T A].
ElectrostaticsClass 12, Electric Charges and Fields
Dimensional formula of Electric dipole moment
[L T A]
Charge times the separation of the charges. Do not mix it up with momentum, which also uses p.
How to get the dimensional formula of electric dipole moment
- Start from the definition: electric dipole moment = electric charge × length.
- electric charge = electric current × time, so electric charge is [A] × [T] = [T A].
- Put in the dimension of each part: [T A] × [L].
- Add the powers of each base quantity: [L T A].
Three questions on electric dipole moment
2What is the SI unit of electric dipole moment?
The SI unit of electric dipole moment is the coulomb metre (C m).
3Do electric dipole moment and surface charge density have the same dimensions?
Electric dipole moment is [L T A] but surface charge density is [L⁻² T A].
Electric dipole moment: quick answers
What is the dimensional formula of electric dipole moment?
The dimensional formula of electric dipole moment is [L T A]. It comes from electric dipole moment = electric charge × length.
What is the SI unit of electric dipole moment?
The SI unit of electric dipole moment is the coulomb metre (C m).
Is electric dipole moment dimensionless?
No. Electric dipole moment has the dimensions [L T A].