An Electron Is Travelling in the Positive X Direction

question 20

Multiple Choice

An electron is travelling in the positive x direction.A uniform electric field is in the negative y direction.If a uniform magnetic field with the appropriate magnitude and direction also exists in the region, the total force on the electron will be zero.The appropriate direction for the magnetic field is:

• A)the positive y direction
• B)the negative y direction
• C)into the page
• D)out of the page
• E)the negative x direction

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Definitions:

Pupils

The black circular openings in the center of the iris of the eye, which regulate the amount of light that enters the eye.

Accommodation

The process of the lens changing shape to permit close vision.

Reaction To Light

The response of the pupil in the eye when exposed to light, typically narrowing (constriction) to reduce light intake and protect the retina.

Orthopedics

The branch of medicine that deals with the prevention or correction of injuries or disorders of the skeletal system and associated muscles, joints, and ligaments.