An electron is launched with velocity $An electron is launched with velocity in a uniform magnetic field .The angle \theta 0between and is between 0 and 90o.As a result, the electron follows a helix, its velocity vector returning to its initial value in a time interval of: A)2 \pi m/eB B)2 \pi mv/eB C)2 \pi mv sin \theta /eB D)2 \pi mv cos \theta /eB E)none of these$ in a uniform magnetic field $An electron is launched with velocity in a uniform magnetic field .The angle \theta 0between and is between 0 and 90o.As a result, the electron follows a helix, its velocity vector returning to its initial value in a time interval of: A)2 \pi m/eB B)2 \pi mv/eB C)2 \pi mv sin \theta /eB D)2 \pi mv cos \theta /eB E)none of these$ .The angle

\theta

0between $An electron is launched with velocity in a uniform magnetic field .The angle \theta 0between and is between 0 and 90o.As a result, the electron follows a helix, its velocity vector returning to its initial value in a time interval of: A)2 \pi m/eB B)2 \pi mv/eB C)2 \pi mv sin \theta /eB D)2 \pi mv cos \theta /eB E)none of these$ and $An electron is launched with velocity in a uniform magnetic field .The angle \theta 0between and is between 0 and 90o.As a result, the electron follows a helix, its velocity vector returning to its initial value in a time interval of: A)2 \pi m/eB B)2 \pi mv/eB C)2 \pi mv sin \theta /eB D)2 \pi mv cos \theta /eB E)none of these$ is between 0 and 90^o.As a result, the electron follows a helix, its velocity vector $An electron is launched with velocity in a uniform magnetic field .The angle \theta 0between and is between 0 and 90o.As a result, the electron follows a helix, its velocity vector returning to its initial value in a time interval of: A)2 \pi m/eB B)2 \pi mv/eB C)2 \pi mv sin \theta /eB D)2 \pi mv cos \theta /eB E)none of these$ returning to its initial value in a time interval of:
A)2

\pi

m/eB
B)2

\pi

mv/eB
C)2

\pi

mv sin

\theta

/eB
D)2

\pi

mv cos

\theta

/eB
E)none of these

An Electron Moves in the Negative X Direction, Through a Uniform

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