Question

If \[N\] is the total number of turns and \[A\] is the area of each turn, which formula gives the solenoid's magnetic moment?

पर्याय

• \[m=I/(NA)\]

• \[m=NI/A\]

• \[m=NIA\]

• \[m=NA/I\]

Answer 1

The magnetic moment equals total turns × current × area. Using \[N\] for total turns and \[A\] for area gives \[m=NIA\].