An electron moves at speed 5.6 x 106 m/s toward the velocity selector shown in (Figure 1)

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Question

An electron moves at speed 5.6 x 106 m/s toward the velocity selector shown in (Figure 1)

An electron moves at speed 5.6 x 10⁶ m/s toward the velocity selector shown in (Figure 1). A 0.12-T magnetic field points into the paper.

Part A

Determine the magnitude of the magnetic force that the magnetic field exerts on the electron.

Part B

Determine the direction of the magnetic force that the magnetic field exerts on the electron.

upward
downward

Part C

What E field magnitude is required so that the electric force exerted on the electron is equal in magnitude and opposite in direction to the magnetic force?

Part D

What E field direction is required so that the electric force exerted on the electron is equal in magnitude and opposite in direction to the magnetic force?

upward
downward

science physics

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Answer 1

Answer #1

Concept: use the magnetic force on a moving charged particle and then equate the electric force with the magnetic force to find out the magnitude of the electric field

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Answer 2

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An electron moves at speed 5.6 x 106 m/s toward the velocity selector shown in (Figure 1)

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