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CBSE Class 12-science Answered

  In potentiometer to measure internal resistance, is there current flowing throuh circuit containing secondary cell of unknown emf and resistance box connected in parallel to the cell at null point.
Asked by Tiroumourougane Souprayen | 23 Feb, 2015, 04:50: PM
answered-by-expert Expert Answer

Hi,

At null point current across the galvanometer is zero but there is current flowing through circuit containing secondary cell of unknown emf and resistance box connected parallel.

Answered by | 23 Feb, 2015, 05:00: PM

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