Question

An electric current is passed through a copper wire by connecting its ends to a battery. It is kept between the poles of a strong horseshoe magnet. There is a
force on the wire due to the magnet. If you interchange the connections to the positive and negative terminals of the battery, and also the positions of the north and south poles of the magnet
what will be the change in the force on the wire due
to the magnet?​

Answer 1

i

It is a concept of Magnetic effects...it's upon the direction of the magnet...whether it's charge is positive or negative...

Answer 2

Answer:

If you interchange, force act upward