- #1
pardesi
- 339
- 0
well i saw a proof in griffith about the diraction of magnetic field due to an infinitely large steady current carrying plate in x direction .well i could argue on the normal basis of an current element being at equal distances and component cancellingout...that the field has to be in y direction.
but then he gave a beautiful proof arguing on the line that if there were field in z direction then by biot savrt law reversing current would reverse it's direction
upto this everything was ok
then he writes but the field in z direction can't possibly depend on current direction in xy plane
why is this?
but then he gave a beautiful proof arguing on the line that if there were field in z direction then by biot savrt law reversing current would reverse it's direction
upto this everything was ok
then he writes but the field in z direction can't possibly depend on current direction in xy plane
why is this?