Mr. Wang works in a recycling center recyclable materials arrive at the center mixed together workers use magnetss to separate Steel cans from other items which 2 statements are true about the force between a steel can and magnet

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

i would say

because if the tool that you are using is not balanced it there would be false mass.