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Electric Charges and Fields
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NEET Questions
Electric Charges And Fields
Physics
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Two point charges A and B, having charges +Q and -Q respectively, are placed at certain distance apart and force acting between them is F. If 25% charge of A is transferred to B, then force between the charges becomes
A
$F$
B
$169F $
C
$916F $
D
$34F $
Medium
NEET
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A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre
A
Increases as r increases for
$r<R$
and for
$r>R$
B
Zero as r increases for
$r<R$
, decreases as r increases for
$r>R$
C
Zero as r increases for
$r<R$
, increases as r increases for
$r>R$
D
Decreases as r increases for
$r<R$
and for
$r>R$
Medium
NEET
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>