. Ice water in cold air: Which way will heat flow? Draw an arrow between the air and the ice water below, showing the direction of heat transfer. Explain how the arrows will go. Will they go upward or downwards from each side

80cm/s.

24cm/s.

53.3cm/s.

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.