The diagram above shows a magnetic field due to a
Attached Figure / Diagram
A
solenoid
B
circular coil
C
current-carrying straight conductor
D
the earth's meridian
Verified Correct Answer: C.
Physical Principles & Numerical Solution
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.)
Source: Myschool Past Questions Archive (Record #74358)