^Moving point charge

Moving point charge

Magnetic field at point P for a point charge ‘+q’ moving with velocity is

In any arbitrary volume of conductor net negative & positive charge is equal, thus net charge enclosed for any section is zero, hence electric field outside a current carrying conductor is zero. Also if an observer moves along the free electrons of a current carrying conductor with a velocity equal to drift velocity of free electrons, then the magnetic field experienced at the observer location will be due to relative velocity of positive ions of conductor w.r.t. observer.

Rate this post
error: Content is protected !!