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JEEMAIN and NEET
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Physics
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Class12
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Electric Charges and Fields
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Q)
Two thin wire rings each having radius R are placed at a distance d apart with their axes coinciding . The charges on the two rings are +Q and -Q .The potential difference between the centres of the two rings is
(
a
)
z
e
r
o
(
b
)
k
Q
d
2
(
c
)
2
k
Q
(
1
R
−
1
√
R
2
+
d
2
)
(
d
)
k
Q
(
1
R
−
1
√
R
2
+
d
2
)
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