A circular coil that has N = 230 turns and a radius of r = 10.0 cm lies in a magnetic field that has a magnitude of B 0 = 0.0650 T directed perpendicular to the plane of the coil. What is the magnitude of the magnetic flux Φ B through the coil?

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?