oger wants to use a magnet to pick up a sheet of metal, but his magnet is too far away to attract. What is a possible solution?
a
Get a bigger magnet, because the magnetic field will be larger.
b
Turn the magnet around and use the opposite pole instead.
c
Get a smaller magnet, because the magnetic field will be smaller.
d
Turn the magnet so that the middle is pointed toward the metal.