Draw a diagram which shows that the effect of a magnetic field on a current carrying wire.

Who proposed that a magnetic field is present at a current carrying wire?

What is the shape of the magnetic field lines around a current carrying straight wire?

Magnetic field due to a long current-carrying wire Oersted's experiments showed that there is a magnetic field around a current-carrying wire. We determine the magnitude of magnetic field at some distance from a long stright wire carrying a current I.

Do you know that a magnetic field is produced around a current carrying wire?