NEET Odisha 2019 physics questions with solutions

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• MCQmediumCurrent electricityElectrical Instruments: Galvanometer, Ammeter, Voltmeter & Potentiometer

  The metre bridge is balanced when P/Q = l₁/l₂. If positions of galvanometer and cell are interchanged, does bridge work and what is balance condition? [Diagram: Image]

  Options

  • Option A

    yes, P/Q = (l₂-l₁)/(l₂+l₁)

  • Option B

    no null point

  • Option C

    yes, P/Q = l₂/l₁

  • Option D

    yes, P/Q = l₁/l₂

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