In: Physics
A circular coil 20.0cm in diameter and containing nine loops lies flat on the ground. The Earth's magnetic field at this location has magnitude 8.00
magnitude of magnetic field B = 8 x 10-5T
diameter of coil = d = 20.0 cm ( 10-2 m / cm)
= 0.20 m
radius of the coil r = d/2
= 0.10 m
area of the loop A = r2
= ( 3.14 ) ( 0.10 m)2
= 0.0314 m2
The angle between the normal to the coil and the field is 90.0o - 57.0