Question

why solenoid is more preferable than a bar magnet ? (no need to answer please)
@kingkongl bro,
say, these might be last words​

Answer 1

Answer:

The poles of the bar magnet are fixed whereas for a solenoid the poles can be altered. The strength of the magnetic field of a bar magnet is fixed ie, unaltered whereas the strength of the magnetic field of a solenoid depends on the electric current that is passed through it.

Answer 2

Answer:

please don't go this may be my last reply because I am going offline now .

I request you don't go be happy always..

sorry also because from now I am not able to answer your question because I am going offline for few minutes because of some work hence I am unable to answer your questions.

please don't leave.