1@ Nishant.we want terminal p.d , so can't we just have the internal R as the only r . do we need another external one? I'm only asking. dunno whether it's very primitive . sry .
If the internal resistance of a cell is propotional to current drawn from cell.Then plot the variation of terminal potential difference of cell with current drawn from source.
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4 Answers
62r=kI
E=I(r) + IR
E=I2r+IR
I2r+IR-E=0
I= -R+√R2+4Er
This i guess is more than the hint? ;)
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