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Question No. 23 The resistance of the me...

Question No. 23 The resistance of the metre bridge AB in given ligure is 40 With a cell ot emte=05 V and rheostat resistance R = 20 the null point is obtained at some point when the cell is replaced by another one = the same null point Jis found for R = 60. The omis

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The resistance of the meter bridge AB in given figure is 4 Omega .With a cell of emf epsilon=0.5 V and rheostat resistance R_(h) = 2 Omega the null point is obatined at some point J is found for R_(h) = 6 Omega " The emf "epsilon _(2) is

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