Force of attraction between two point charges Q and −Q separated by d meter is Fe. When these charges are placed two identical sphere of radius R=0.3d whose centries are d meter apart the force of attraction between them is
A
Greater than Fe
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B
Equal to Fe
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C
Less than Fe
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D
None of these
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Solution
The correct option is B Equal to Fe Force of attraction between two point charges Q and −Q separated by d.
Force Fe
radius =R=3d
That is also equal to Fe because the distance is same hence force is also same.