draw magnetic field lines produced around a current carrying straight conductor passing through cardboard how will the strength of - Science -

Question

draw magnetic field lines produced around a current carrying
straight conductor passing through cardboard how will the strength
of the magnetic field change ,when the point where magnetic field
is to be determined is moved away from the straight wire carrying
constant current?justify your answre pleas

Jincy Jacob · Answer

he direction of the magnetic lines of forces produced around a
current carrying conductor passing through the axis of a cardboard
as shown below, is given by Fleming's Right-Hand Thumb Rule also
known as Maxwells corkscrew rule
<img src=
"https://s3mn%20mnimgs%20com/img/shared/discuss_editlive/3760494/2012_09_18_13_25_49/1%20png">
As the strength of magnetic field varies inversely with the
square of the distance of the point from the elementary portion of
the conductor carrying current so magnetic field strength will
reduced at the point where the magnetic field is to be determined,
is moved away from the straight wire carrying constant current