Which type of wave is the first to arrive during an earthquake

Its the p wave it stand for primary wave  my dude

they can go trough liquids and other things

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.