An Electron Is Accelerated from Rest by an Electric Field $\times$

question 32

Multiple Choice

An electron is accelerated from rest by an electric field.After the acceleration,the electron is injected into a uniform magnetic field of 1.27 $\times$ 10^-3 T.The velocity of the electron and the magnetic field lines are perpendicular to one another.The electron remains in the magnetic field for 5.00 $\times$ 10^-9 s.The angle between the initial electron velocity and the final electron velocity is

• A)1.1 rad
• B)5.8 \(\times\) 10^-2 rad
• C)8.68 \(\times\) 10^-2 rad
• D)6.5 \(\times\) 10^-2 rad
• E)2.3 rad

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