Physics-
General
Easy

Question

The equivalent resistance between the terminals A blank a n d blank B in the following circuit is

  1. 10blank capital omega    
  2. 20blank capital omega    
  3. 5blank capital omega    
  4. 30blank capital omega    

The correct answer is: 20blank capital omega



    10capital omega in series with 10capital omega will gives
    (10+10)=20capital omega
    and 10capital omega in series with 10capital omega will gives
    (10+10)=20capital omega

    20capital omega in parallel with 20capital omega will gives
    open parentheses fraction numerator 20 cross times 20 over denominator 20 plus 20 end fraction close parentheses equals fraction numerator 400 over denominator 40 end fraction equals 10 capital omega

    Resistance in series between points A and D
    =5+10+5
    =20capital omega

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