JoVE Logo

Iniciar sesión

24.7 : Calculations of Electric Potential II

An electric dipole is a system of two equal but opposite charges, separated by a fixed distance. This system is used to model many real-world systems, including atomic and molecular interactions. One of these systems is the water molecule, but only under certain circumstances. These circumstances are met inside a microwave oven, where electric fields with alternating directions make the water molecules change orientation. This vibration is equivalent to heat at the molecular level.

Consider a dipole with charges 2 nC and -2 nC, with a separation of 2 cm between them, situated at the origin. What will be the electric potential due to this dipole at positions A (5 cm, 0, 0), and B (0, 5 cm, 0)?

Static equilibrium diagram; electric charges at points A(5,0), B(0,5) nC vectors on axes.

The electric potential due to the dipole is given by the following equation

Electric field potential equation, V=(1/4πε₀)(qd cosθ/r²), electrostatics concept.

For position A, the electric potential is calculated on the x-axis, for which the angle between the position vector and the dipole moment is 90 degrees. Therefore the electric potential due to the given electric dipole at position A is

Static equilibrium equation, VA=0, related to mechanical balance concepts.

For position B, the electric potential is calculated on the y-axis, for which the angle between the position vector and the dipole moment is 0 degrees. Therefore the electric potential due to the given electric dipole at position B is

Electric potential formula V<sub>B</sub> in electrostatics; mathematical equation analysis.

Voltage equation \(V_B=144V\) for circuit analysis and electrical calculations.

Tags

Electric DipoleElectric PotentialChargesMolecular InteractionsWater MoleculeMicrowave OvenAlternating Electric FieldsDipole MomentPosition APosition BCalculation

Del capítulo 24:

article

Now Playing

24.7 : Calculations of Electric Potential II

Electric Potential

1.6K Vistas

article

24.1 : Energía Potencial Eléctrica

Electric Potential

5.7K Vistas

article

24.2 : Energía potencial eléctrica en un campo eléctrico uniforme

Electric Potential

4.6K Vistas

article

24.3 : Energía potencial eléctrica de dos cargas puntuales

Electric Potential

4.4K Vistas

article

24.4 : Potencial eléctrico y diferencia de potencial

Electric Potential

4.3K Vistas

article

24.5 : Encontrar el potencial eléctrico del campo eléctrico

Electric Potential

4.0K Vistas

article

24.6 : Cálculos de Potencial Eléctrico I

Electric Potential

1.9K Vistas

article

24.8 : Superficies equipotenciales y líneas de campo

Electric Potential

3.6K Vistas

article

24.9 : Superficies equipotenciales y conductores

Electric Potential

3.3K Vistas

article

24.10 : Determinación del campo eléctrico a partir del potencial eléctrico

Electric Potential

4.3K Vistas

article

24.11 : Ecuación de Poisson y Laplace

Electric Potential

2.6K Vistas

article

24.12 : Generador Van de Graaff

Electric Potential

1.7K Vistas

article

24.13 : Energía asociada a una distribución de carga

Electric Potential

1.5K Vistas

article

24.14 : Condiciones de contorno electrostáticas

Electric Potential

413 Vistas

article

24.15 : Segundo teorema de unicidad

Electric Potential

972 Vistas

JoVE Logo

Privacidad

Condiciones de uso

Políticas

Investigación

Educación

ACERCA DE JoVE

Copyright © 2025 MyJoVE Corporation. Todos los derechos reservados