37. a wire carrying a 30.0-a current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.16-n force on the 4.00 cm of wire in the field. what is the average field strength

less than one you can't create energy

get the total number of pieces of fruit and divide it by 4 to get the average. the result is the answer to the problem. 14 total number of fruits and there are 4 members. 14 divided by 4 is equals to 3.5.

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.