Which explanation agrees with the contemporary model of electric charge?
a. If an object is charged negatively by rubbing, it has lost positively charged particles.
b. If an object is charged positively by rubbing, it has lost negatively charged particles.
c. If an object is charged positively by rubbing, it has acquired positively charged particles.
d. If an object is charged negatively by rubbing, it has acquired negatively charged particles.
e. a and c
f. b and d
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