Question

The forces between two charges when separated by a distance od 50cm in air is 4n. What will be the force between if the force between them if distance becomes 25cm

Answer 1

Answer:

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Answer 2

Answer:16 N

Explanation:

$F   \:\ \alpha \:\ \frac{1}{r^2}$

So when distance is cut to half force will be 4 times or 16 N