Electricity & Magnetism
Electric Dipole Moment
Electric dipole moment for two equal and opposite charges.
Variables
pC·m
Dipole moment
Electric dipole moment
In SI units: A·s·m
qC
Charge
Magnitude of each charge
In SI units: A·s
dm
Separation
Distance between charges
Allowed values: greater than 0
Derivation
Defined as p = qd, pointing from negative to positive charge.
Your notes
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Check value
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- q = 2 C (Charge)
- d = 3 m (Separation)
Result: p = 6 C·m
Other electricity & magnetism formulas with the same quantities
- Electric Potential Energy (Electrostatics) shares Charge
- Magnetic Force on Charge (Magnetism) shares Charge
- Cyclotron Frequency (Magnetism) shares Charge
- Cyclotron Radius (Magnetism) shares Charge
- Hall Voltage (Magnetism) shares Charge
Where this formula is listed
- Electricity & Magnetism formulas, under Electrostatics, alongside Coulomb's Law, Electric Potential, Uniform Electric Field, Gauss's Law and Electric Flux.
- In the electricity & magnetism list it comes after Gauss's Law and before Electric Dipole Field (Axial).
- Electricity & Magnetism formula sheet, one of 48 formulas printed with symbol keys and SI units.
- The full formula index, grouped by category and topic.
Common questions
What is the Electric Dipole Moment formula?
Electric Dipole Moment is written p = qd. Electric dipole moment for two equal and opposite charges. It belongs to Electricity & Magnetism, under Electrostatics.
What are the units in p = qd?
In SI units, p is dipole moment, measured in A·s·m; q is charge, measured in A·s; d is separation, measured in m.
How is the Electric Dipole Moment formula derived?
Defined as p = qd, pointing from negative to positive charge. The result is p = qd.