Aeight conducting lops wrap around a sphere, with a 40.0 cm radius and a 1.20 kg mass. this sphere rests on a 30 degree inclined plane which experiences a 0.600 t magnetic field, pointing directly up. current that flows through these loops provide a torque that keeps the sphere from rolling down this plane.

answer:

(a) 400 km/s; (b) 835 ev

•2 a particle of mass 10 g and charge 80 μc moves through a uniform magnetic field, in a region

where the free-fall acceleration is - m/s2

. the velocity of the particle is a constant km/s,

which is perpendicular to the magnetic field.

explanation:

i believe the answer is a

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.