Multiple Choice
A proton moves through a small box that is isolated from all external influences and that has no matter inside it other than the single proton. Which of the following would we expect to find at some other point X [away from the proton] inside the box?
A) a magnetic field
B) an electric field
C) Both of the above.
D) an electric force
E) no fields or forces of any kind
Correct Answer:

Verified
Correct Answer:
Verified
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