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Question

In post office box, the graph of galvanameter deflection versus resistance R (pulled out of resistance box) for the ration 100 : 1 is given as shown (due to unsuitable values of R, galvonometer shows deflection) The two consecutive values of R are shown in the figure.

The value of unknown resistance would be

  1. 3.2 capital omega    
  2. 3.24capital omega    
  3. 3.206 capital omega    
  4. 3.2375capital omega    

The correct answer is: 3.24capital omega

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