(a) Describe an activity to demonstrate the pattern of magnetic field lines around a straight conductor carrying current (b) - Science - Magnetic Effects of Electric Current

Question

(a) Describe an activity to demonstrate the pattern of magnetic
field lines around a straight conductor carrying current (b) State
the rule to find the direction of magnetic field associated with a
current carrying conductor (c) What is the shape of a current
carrying conductor whose magnetic field pattern resembles that of a
bar-magnet ?

Malka Tarannum · Accepted Answer

Dear Student,

Solution to your asked query is provided below:

The direction of magnetic field line can be given by the right-hand
thumb rule According to this rule, if we imagine the linear wire
conductor to be held in the grip of the right hand so that the
thumb points in the direction of a current, then the curvature of
the fingers around the conductor will represent the direction of
magnetic field lines
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/images/Untitled_png%20magnetic%20field%20along%20straight%20conductor(1)%20png"
style="width: 800px; height: 314px;"> If the current flows from Y
to X in the straight conductor, then the direction of magnetic
field lines will be anticlockwise and if the current flows from X
to Y in the straight conductor, then the direction of magnetic
field lines will be clockwise

Regards