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[" 10.If "E" is the emf of a cell of int...

[" 10.If "E" is the emf of a cell of internal resistance "r" and "],[" external resistance "R" ,then potential difference across "],[R" is given as "],[[" (a) "V=E/(R+r)," (b) "V=E],[" (c) "V=E/(1+r/R)," (d) "V=E/(1+R/r)]]

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