- #1
Dr.Brain
- 538
- 2
OK ..actually i don't have any doubts generally but when I do some new chapters, i do have some.
I was reading about BAR MAGNETISM and about para,dia and ferro properties of materials. My first doubt:
1)How can "angle of dip" at the poles be 90 degrees? .. I think at the South Or North Pole , the bar magnet becomes verticle such that N always points in the direction of the net field.So It should make and angle of 0 degrees at the poles!
2) What are the adverse effects of the Magnetic reversals that take place as for the Earth's magnetic field dirction?
3)Suppose we have a bar magnet Of material A with pole strength "m" ... now we make another Bar magnet from same material A with length more than the previous one .. does its "m" change?
4) I think we can replace each coil of a solenoid by a bar magnet of pole strength "m" such that md=iA ..right? ... can we do something like replace the solenoid with only one bar magnet with same "m" as the previous method but length equal to that of solenoid's?
These are my own doubts.Thanx
I was reading about BAR MAGNETISM and about para,dia and ferro properties of materials. My first doubt:
1)How can "angle of dip" at the poles be 90 degrees? .. I think at the South Or North Pole , the bar magnet becomes verticle such that N always points in the direction of the net field.So It should make and angle of 0 degrees at the poles!
2) What are the adverse effects of the Magnetic reversals that take place as for the Earth's magnetic field dirction?
3)Suppose we have a bar magnet Of material A with pole strength "m" ... now we make another Bar magnet from same material A with length more than the previous one .. does its "m" change?
4) I think we can replace each coil of a solenoid by a bar magnet of pole strength "m" such that md=iA ..right? ... can we do something like replace the solenoid with only one bar magnet with same "m" as the previous method but length equal to that of solenoid's?
These are my own doubts.Thanx