Which kind of good might not be bought when prices rise?

Explanation:

Luxuries is the sector that suffers more when prices rise, because these goods are not a need to people, they are just leisure and extra things, like having the last smartphone, or having two cars.

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.