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Question
Choose the correct option.
Two charges of 1.0 C each are placed one meter apart in free space. The force between them will be
Options
1.0N
9 × 109 N
9 × 10-9N
10N
Solution
9 × 109 N
Explanation:
F = `1/(4πε_0)("q"_1"q"_2)/"r"^2=9xx10^9xx(1xx1)/1` = 9 × 109 N
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