Use the following equation to help you. The blackbody curve for a star named Theta is shown below. What is the surface temperature of this star rounded to the nearest whole number?

800 K
52,870 K
23,200 K
36,250 K

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

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.