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JEEMAIN and NEET
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Physics
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Class12
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Current Electricity
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Q)
The length of the potentiometer wire is l. A cell of emf E is balanced at length
l
3
from the positive end of the wire. If the length of the wire is increased by
l
2
, at what distance will the same cell give a balance point
(
A
)
l
3
(
B
)
l
2
(
C
)
2
l
3
(
D
)
3
l
4
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