According to oersted, around a current carrying conductor, magnetic field exists
A. as long as there is current in the wire
B. even after removing the current in the wire
C. only few seconds after removing the current
D. None of these
Answer:A
According to oersted, around a current carrying conductor, magnetic field exists
A. as long as there is current in the wire B. even after removing the current in the wire C. only few seconds after removing the current D. None of these