Question

19. [-13 Points] DETAILS SERPSE10 29.1.OP.003.CTX. MY NOTES ASK YOUR TEACHER You are performing studies of the possibility of migrating birds using the Earth's magnetic field for navigation. To modify the magnetic field in the brain of a bird, you fit the bird with coils as "caps" and "collars" as shown in the figure below. The data on the coils indicate that they each have 210 of resistance, a radius of 1.20 cm, and 50 turns of wire. The centers of the coils are separated by 2.05 cm. You wish to create an "Earth-like" magnetic field of 5.0 x 10 -5 T at the midpoint of the axis between the coils. Given this data, you need to determine the voltage of the battery (in V) needed to power the coils. V Need Help? Read It

Answer 1

Solution Strength of Magnetic field, B = 50x10-57 Number ey turns 2x 50-100 Distance of separation d id=2.05cm = 0.0205m 2lon Resistence of were i RT Call, r = Radius of IM: 1.2=0.012 m. N: 2BR (12+0/2)) HONG2 VE 2415 410-5 ) X 210 XF OR 12 (0.012 j} + 0.0205 2 Mox 100x Cool2)2 2 v=4.560