# electric field and magnetic field relationship

by bernhard.rothenstein
Tags: electric, field, magnetic, relationship
 P: 997 We find in the literature the following relationships between electric field E and magnetic field B B(z)=E(y)V/cc and E(y)=VB(z) Is there a way to define the situations when they hold? Thanks
 HW Helper P: 1,273 apparently only if v^2=c^2 for nonzero fields
 HW Helper Sci Advisor P: 1,836 Your first expression is the relation between B and E for a charged particle moving in the x direction. Your second expression is for a different situation.It gives the relation between E'_y and B'_z if you are moving with velocity v in the x direction with respect to a pure magnetic field (no E) B_z.
P: 997

## electric field and magnetic field relationship

 Quote by Meir Achuz Your first expression is the relation between B and E for a charged particle moving in the x direction. Your second expression is for a different situation.It gives the relation between E'_y and B'_z if you are moving with velocity v in the x direction with respect to a pure magnetic field (no E) B_z.
thanks. is there a special name for E' in the second case?
P: 997
 Quote by Meir Achuz Your first expression is the relation between B and E for a charged particle moving in the x direction. Your second expression is for a different situation.It gives the relation between E'_y and B'_z if you are moving with velocity v in the x direction with respect to a pure magnetic field (no E) B_z.