A dry cell delivering 2A has terminal voltage 1.41V.What is the internal resistance (in ) of the cell if its open circuit voltage is 1.59V?
0.09
6.09
7.09
5.09
As we learnt
Potential drop inside the cell -
-
Open circuit voltage E=1.59V
P.D. across internal resistance is Ir.
5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be 3.820C. If Na2SO4 is 81.5% ionised, the value of x (K
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