JEE Main 21 Jan 2026 Shift 2 Paper Solved Paper

Section: Physics
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Question : 31 of 75
 
Marks: +1, -0
The total length of potentiometer wire AB is 50 cm in the arrangement as shown in the figure. If P is the point where the galvanometer shows zero reading then the length AP is ____ cm.
[21 Jan 2026 Shift 2]
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