Question

magnetic field a distance r from a long straight wire carrying a steady current I is​

Answer 1

Explanation:

Magnetic Field Around a Wire, I. Whenever current travels through a conductor, a magnetic field is generated. ... The magnetic field is strongest in the area closest to the wire, and its direction depends upon the direction of the current that produces the field, as illustrated in this applet.

Answer 2

$\huge\pink{Ello \: ♡}$

A current of electricity is a steady flow of electrons. When electrons move from one place to another, round a circuit, they carry electrical energy from place to place like marching ants carrying leaves. Instead of carrying leaves, electrons carry a tiny amount of electric charge.