Magnetic field at a distance r from an infinitely long straight conductor carrying steady varies as

Magnetic field at a distance r from an infinitely long straight conductor carrying a steady current varies as

Magnetic field at a distance r from an infinitely long straight conductor carrying a steady current varies as

Calculate the magnetic field at a distance of 5 m from an infinite straight conductor carrying a current of 100 A.

Calculate the magnetic field at a distance of 5 cm from an infinite straight conductor carrying a current of 10 A.

The magnetic flux denisty B at a distance r from a long stright rod carrying a steady current varies with r as show in the

What is the magnetic field produced at a distance 1 m from a long, straight conductor carrying 1 A current?