Question

Suppose a current flows through a copper wire. Which two things occur?

A. The field is parallel to the direction of flow of the current.
B. A magnetic field forms around the wire.
C. An electric field forms around the wire.
D. The field is perpendicular to the direction of flow of the cu

Answer 1

A current flowing through a copper wire creates a magnetic field that forms concentric circles around the wire, and this field can be determined by the right-hand rule.

Step-by-step explanation:

When a current flows through a copper wire, two key things happen regarding the magnetic fields around the wire. First, a magnetic field forms around the wire, with the field lines forming concentric circles perpendicular to the wire. This is explained by the right-hand rule: if you point your right thumb in the direction of the current, your fingers will curl in the direction of the magnetic field. Second, while an electric field also exists within the wire due to the movement of charges, it is the magnetic field that is directly associated with the current flowing through the wire and forms around it in circular patterns.