A Proton Moving in a Region of a Space Does

question 24

Multiple Choice

A proton moving in a region of a space does not experience any acceleration in the direction of motion. Which of the following statements is correct with respect to this situation?

• A) The electric and magnetic fields must be perpendicular to each other in that region.
• B) The electric and magnetic fields must be parallel to each other in that region.
• C) Both electric and magnetic fields must be zero in that region.
• D) The electric field must be zero but not the magnetic field in that region.
• E) The magnetic field must be zero but not the electric field in that region.

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Definitions:

Ordinary Annuity

Harmony of equal contributions at the end of each cycle for a particular duration.

Expressed

Clearly stated, articulated, or otherwise made known in explicit terms.

Years

Units of time measuring 365 or 366 days, used as a standard time period for comparing durations.

Months

Units of time corresponding approximately to one cycle of the moon's phases, used in planning and organizing activities over a period, typically consisting of 30 or 31 days, except for February.