A marble rolls down the ramp and attains a velocity of 1m/s if that falls from a height of 3m how far from the base of the ramp would you expect the marble to land

Explanation:

do it yourself bro

they start with the same

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.