In a meter bridge, the wire of length 1m has a non-uniform
cross-section such that, the variation [IMAGE] of its
resistance R with length.
Two equal resistances are connected as shown in the figure. The
galvanometer has zero deflection when the jockey is at point P. What is
the eight times the lengthAP ?

Show answer and solution

[IMAGE] Acording to Question
[IMAGE] TOPIC:Current and electricity
SUB TOPIC: Potentiometer
LEVEL:Moderate

Source: Grass-G / Ph-28 Physics paper FST 16 Jan.docx

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