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

\theta

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

\theta

/eB
D) 2πmv cos

\theta

/eB
E) none of these

At One Instant an Electron (Charge = -1

Multiple Choice

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