Explore BrainMass
Share

Electric potential due to electric dipole

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Write down an expression for the electric potential about an electric dipole, as a function of the spatial coordinates relative to the dipole.

Calculate the electric field as a function of these spatial coordinates from the electric potential.

A 2D solution (with the dipole existing in the 2D plane) is fine.

Thanks

https://brainmass.com/physics/electric/electric-potential-due-electric-dipole-203748

Solution Preview

Let us consider the potential at a point P with coordinates (r, θ) as shown.

The potential at a point due to a charge q is kq/r, where k = 1/(4Πε0) = 9 x 109.

r1 ≈ r - a(cos θ)

r2 ≈ r + a(cos θ)

The potential at P due to the charge +q is ...

Solution Summary

the expert examines the electric potential due to electric dipoles. A step by step solution provided.

\$2.19

Physics: Position and magnitude of electric charge

A +3.0 charge is at and a -1.0 charge is at .
At what point or points on the x-axis is the electric potential zero?
X = ___________ cm

A -2.0 charge and a +2.0 charge are located on the x-axis at and , respectively.
At what position or positions on the x-axis is the electric field zero?
At what position or positions on the x-axis is the electric potential zero?

Estimate the magnitude of the electric field in a cell membrane with a thickness of 8 .

A ion moves from inside a cell, where the electric potential is -70 , to outside the cell, where the potential is 0 .
What is the change in the ion's electric potential energy as it moves from inside to outside the cell?
A 3.0 3.0 parallel-plate capacitor has a 3.0 spacing. The electric field strength inside the capacitor is 1.5×105 .
How much charge is on each plate?

View Full Posting Details