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Two batteries of emf E_(1) and E_(2)(E_(2) gt E_(1)) and internal resistances r_(1) and r_(2) respectively are connected in parallel as shown in figure. |
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Answer» Two batteries of emf E1 and Ei{E2 GT E1) and internal resistances r1 and r2 respectively are connected in parallel as shown in figure. `therefore (R)/(S)=(l_(1))/((100-l_(1)))` `or R=(Sl_(1))/((100-l_(1)))=((100Omega)(2.9cm))/((100-2.9)CM)approx3Omega` The accuracy of MEASURING R can be improved if S and R are of the same ORDER, i.e. S should be changed to `3OMEGA`. |
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