All parts please

(7) [5 points] With FlipitPhysics you have already found the field due R to a circular loop of radius R carrying current / at a point a distance x from the center of the loop but along the axis. A pair of such loops R placed a distance R apart makes up a Helmholtz coil. Such a coil is used in the e /m ratio lab. (a) Determine the magnetic field as a function of x along the axis of a Helmholtz coil, with x = 0 located in the middle between two coils. Optional: Graph the result. (b) In the lab write-up, you are given the magic formula of B = 4.23 x 10 / with B in tesla and / in amperes. Reverse engineer this formula to determine the number of turns in each coil. The diameter of the coil is 15.5 cm