Physics-
General
Easy

Question

The reading of the ammeter as per figure shown is

  1. fraction numerator 1 over denominator 8 end fraction A    
  2. fraction numerator 3 over denominator 4 end fraction A    
  3. fraction numerator 1 over denominator 2 end fraction A    
  4. 2 A    

The correct answer is: fraction numerator 3 over denominator 4 end fraction A


    Resistance across XY equals fraction numerator 2 over denominator 3 end fraction capital omega

    Total resistance
    equals 2 plus fraction numerator 2 over denominator 3 end fraction equals fraction numerator 8 over denominator 3 end fraction capital omega
    Current through ammeter
    equals fraction numerator 2 over denominator 8 divided by 3 end fraction equals fraction numerator 6 over denominator 8 end fraction equals fraction numerator 3 over denominator 4 end fraction A

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