Electric Field Of A Dipole - Definition, Formula and Examples

Electric Field Of A Dipole - Definition, Formula, Examples and More | BYJU'S

Dipole moment: Definition, Formula, & Examples - Chemistry Notes

Dipole Moment

How to Draw the Magnetic Field Lines of a Dipole | Physics

How to Find the Direction of a Magnetic Dipole Moment | Physics | Study.com

Suppose the earth's magnetic field is 3 ×10^-5  T at the equator and falls off as 1 / r^3, as for a perfect dipole. Let there be an isotropic population of 1-eV protons and 30-keV electrons, each with density n=10^7  m^-3 at r=5 earth radii in the equatorial plane. (a) Compute the ion and electron ∇B drift velocities. (b) Does an electron drift eastward or westward? (c) How long does it take an electron to encircle the earth? (d) Compute the ring current density in A / m^2. | Numerade