both the parallel wire carries current in same direction , then why the magnetic field is upward in c2d2 and - Physics - Moving Charges And Magnetism

Question

both the parallel wire carries current in same direction , then
why the magnetic field is upward in c2d2 and downward in c1d1 ?

Ruhhi Ralhan · Accepted Answer

Hi,
Here is the answer to your
query
In a straight current carrying
conductor the magnetic field is circular (using right hand thumb
rule) From one side the magnetic field line seems emerging out and
from the other side it seems going inwards
So to reduce this ambiguity, if we
consider the outside direction of magnetic field of one current
carrying conductor so we need to consider the outside direction of
the magnetic field on the other conductor also
You can understand it from the
following diagram:
<img height="249" width="236" src=
"https://s3mn%20mnimgs%20com/img/shared/userimages/mn_images/image/3_1(8)%20png"
alt="">
Hope, you understand the
concept
Best wishes!!

both the parallel wire carries current in same direction , then why the magnetic field is upward in c2d2 and downward in c1d1 ?