The Potentiometer-Internal resistance of a cell
1)The resistance offered by the electrolyte between the two electrodes of the cell is:
  

2)What is the shape of graph between internal resistance in X axis and external resistance in Y axis?
  

3)Which material is suitable for potentiometer wire?
  

4)Which one of the following is a scalar quantity?
  

5)What happens to the internal resistance of a cell when we increase the external resistance?
  

6)What is the device used to measure the potential difference? 
  

7)What is potential gradient? 
  

8)Why is a potentiometer preferred to a voltmeter to measure voltage in a circuit? 
  

9)Which of the following is an example for secondary cell? 
  

10)What is an example for a primary cell?
  


  


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