Question

An electric current predominantly produces ____ field around it.

• A. magnetic
• B. electric
• C. gravitational
• D. all the above

Answer 1

The correct option is A magnetic

Oersted's law states that a steady electric current creates a magnetic field around it. For a current carrying wire

• The magnetic field lines encircle the current-carrying wire
• The magnetic field lines lie in a plane perpendicular to the wire
• If the direction of the current is reversed, the direction of the magnetic force reverses.
• The strength of the field is directly proportional to the magnitude of the current.
• The strength of the field at any point is inversely proportional to the distance of the point from the wire.