Which of the following has magnetic field like that of the one around a bar magnet?
A. Current-carrying wire
B. Current-carrying ring
C. Current-carrying solenoid
D. Current-carrying rectangular loop
Answer:C
Which of the following has magnetic field like that of the one around a bar magnet?
A. Current-carrying wire B. Current-carrying ring C. Current-carrying solenoid D. Current-carrying rectangular loop