JAMB - Physics (2025 - No. 12)
The diagram above shows a magnetic field due to a
solenoid
circular coil
current-carrying straight conductor
the earth's meridian
Explication
Answer: C. current carrying straight conductor (Concentric circles typical of straight wire magnetic field.)
(Diagram: concentric circular field lines around a central point on a vertical line, arrows clockwise, indicating field around a wire.)