The Boundary Shown Is That of a Uniform Magnetic Field

question 34

Multiple Choice

The boundary shown is that of a uniform magnetic field directed in the positive z direction.An electron enters the magnetic field with a velocity pointing along the x axis and exits 0.63 μs later at point A.What is the magnitude of the magnetic field?

• A)18 μT
• B)14 μT
• C)28 μT
• D)34 μT
• E)227 μT