How Do Weight and Magnetic Force on an Electron Compare Near Earth's Surface?

[kidia]

How can I Compare the magnitudes near the earth’s surface of the weight of an electron and a typical magnetic force exerted by the earth’s magnetic field (B = 10-5T) on an electron with speed 10 m/s.

As I understood Weight of electron = mg
Magnetic force=qBv

am I right?

 

[Doc Al]

Sounds good to me. (Note that magnetic force = qvB assumes that the electron's velocity is perpendicular to the magnetic field.)