if one paperclip has the mass of 1 gram and 1000 paperclips has a mass of 1 kilogram how many kilograms are 8000 paperclips ?
1 answer:
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As we know that two charges exert force on each other when they are placed near to each other
The force between two charges is given as
here we know that
= two different point charges
r = distance between two point charges
also we know that two similar charges always repel each other while two opposite charges always attract each other
so here correct answer would be
<em>A. A positive and negative charge attract each other.</em>