Prepare a cell containing copper sulphate solution and two copper plates. Determine its internal resistance with the help of a potentiometer. New repeat the experiment by changing the concentration of the solution. For this remove about 50 ml CuSo4 solution and add similar amount of water in the cell. For the purpose of measurement you can use a doctor’s syringe. Do you find any change in the internal resistance of the cell? Also change the (i) plate area immersed in the electrolyte and (ii) separation between the plates. Write various factors on which internal resistance of a cell depends.
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