Question

Draw the pattern of magnetic field lines around a current carrying straight conductor. How does the strength
of the magnetic field produces change :
(a) with the distance from the conductor ?

(b) with the increase in current in a conductor ?​

Answer 1

Answer:

It is better to consider the straight conductor to be of infinite length.

In that case, you have to remember the formula of magnetic field intensity around the conductor.

Refer to the attached photo,

Hope you will be able to understand.