An Electron with a Speed of 6 $\circ$ to the Magnetic Field Lines

question 70

Multiple Choice

An electron with a speed of 6.0 * 10⁵ m/s enters a uniform magnetic field of 0.060 T at an angle of 25 ^$\circ$ to the magnetic field lines.The electron will travel in a helical path.What is the radius of the helical path?

• A)1.3 * 10^-5 m
• B)2.4 * 10^-5 m
• C)4.8 * 10^-5 m
• D)5.7 *10^-5 m