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JEEMAIN and NEET
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NEET PAST PAPERS
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2005
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Q)
Two charges
q
1
and
q
2
are placed 30 cm apart, as shown in the figure. A third charge
q
3
is moved along the arc of a circle of radius 40 cm from C to D. The change in the potential energy of the system is
q
3
4
π
ϵ
0
k
, where k is –
( A )
6
q
2
( B )
8
q
2
( C )
6
q
1
( D )
8
q
1
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