Electron Motion in Electric Fields

What is the magnitude and direction of the electric field between the parallel plates?

• 2 x 10^4 V/m, upward

• 2 x 10^4 V/m, downward

• 2 x 10^2 V/m, upward

• 2 x 10^2 V/m, downward

What is the magnitude of the acceleration of the electron in the region between the plates?

• 3.5 x 10^15 m/s^2

• 3.5 x 10^14 m/s^2

• 2.0 x 10^15 m/s^2

• 2.0 x 10^14 m/s^2

What is the direction of the acceleration of the electron in the region between the plates?

• Downward

• Upward

• Horizontal, in the direction of initial velocity

• Horizontal, opposite to the initial velocity

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What is the acceleration of the electron in the horizontal (x) direction while it is between the plates?

• 3.5 x 10^15 m/s^2

• 0 m/s^2

• -3.5 x 10^15 m/s^2

• 2 x 10^4 V/m

How long does the electron spend moving horizontally through the region between the plates?

• 0.05 m

• 3 x 10^7 m/s

• 1.67 x 10^-9 s

• 4.9 x 10^-3 m

What is the magnitude of the vertical displacement of the electron when it exits the region between the plates?

• 0.01 m

• 0.05 m

• 4.9 x 10^-3 m

• 3.5 x 10^15 m/s^2

Describe the path of the electron as it moves through the region between the plates and after it emerges from the region.

• Straight line inside, then parabolic outside.

• Parabolic inside, then straight line outside.

• Straight line throughout.

• Circular arc inside, then straight line outside.