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JEE Mains Model Paper 16

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Question : 6

Total: 90

The length of a potentiometer wire is l. A cell of emf 'e' is balanced at a length

from the positiveend of the wire. Assuming there is no contribution in resistance from any part of the circuit except thepotentiometer wire, the balancing length for the same cell if length of the wire is increased by

2l
15
3l
15
3l
10
4l
10

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