The length of a potentiometer wire is 'l'. A cell of emf 'E’ is balanced at a length positive end of the wire. If the length of the wire is increased by (l/2), the distance at which the same cell gives the balancing point is (cell in the primary is ideal and no series resistance is present in the primary circuit)

AP EAMCET Engineering 22 Apr 2019 Shift 1 Paper

Section: Physics

Question : 108 of 160

Marks: +1, -0

The length of a potentiometer wire is 'l'. A cell of emf 'E’ is balanced at a length positive end of the wire. If the length of the wire is increased by (

), the distance at which the same cell gives the balancing point is
(cell in the primary is ideal and no series resistance is present in the primary circuit)

2l
3
l
2
l
6
4l
3

Validate

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