Problem: a). In the figure below, an electron is moving parallel to a uniform magnetic field in the direction shown. Is there a force on the electron; if so what direction does it point? Explain your reasoning. b). In the figure below, an electron is moving perpendicular to a uniform magnetic field in the direction shown. Is there a force on the electron; if so what direction does it point? Explain your reasoning.

FREE Expert Solution

The force on the electron is:

F=q(v×B)=qvBsinθ

θ = 0° since the electron is moving parallel to the uniform magnetic field. 

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Problem Details

a). In the figure below, an electron is moving parallel to a uniform magnetic field in the direction shown. Is there a force on the electron; if so what direction does it point? Explain your reasoning. 

b). In the figure below, an electron is moving perpendicular to a uniform magnetic field in the direction shown. Is there a force on the electron; if so what direction does it point? Explain your reasoning.

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