Multiple Choice
What is the range of the electromagnetic force (the maximum distance over which it acts) ?
A) 10-15 m (1 femtometer, or roughly the size of a proton)
B) 10-9 m (1 nanometer, or roughly the size of a hydrogen atom)
C) a few thousand meters, or roughly the size of Earth
D) infinity
Correct Answer:

Verified
Correct Answer:
Verified
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