Physics-
General
Easy

Question

The figure shows a network of currents. The magnitude of current is shown here. The current I will be

  1. 3A    
  2. 9A    
  3. 13A    
  4. 19A    

The correct answer is: 13A


    Regarding Kirchhoff’s junction rule, the circuit can be redrawn as

    Current in arm, A B equals 10 minus 6 equals 4 A
    Current in arm, D C equals 6 plus 2 equals 8 A
    Current in arm, B C equals 4 plus 1 equals 5 A
    Hence, I equals 5 plus 8 equals 13 A

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