Physics-
General
Easy

Question

The current in the following circuit is

  1. fraction numerator 1 over denominator 8 end fraction A    
  2. fraction numerator 2 over denominator 9 end fraction A    
  3. fraction numerator 2 over denominator 3 end fraction A    
  4. 1 A    

The correct answer is: 1 A


    Resistance across the battery is
    fraction numerator 1 over denominator R subscript p end subscript end fraction equals fraction numerator 1 over denominator 3 end fraction plus fraction numerator 1 over denominator 6 end fraction equals fraction numerator 2 plus 1 over denominator 6 end fraction equals fraction numerator 3 over denominator 6 end fraction Þ R subscript p end subscript equals 2 capital omegaÞ I equals fraction numerator 2 over denominator 2 end fraction equals 1 A

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