question_answer

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

A)  3 A           

B)  9 A

C)  13 A         

D)  19 A

Correct Answer: C

Solution :

Regarding Kirchhoffs junction rule, the circuit can be redrawn as : Current in arm, AB = 10 - 6 = 4A Current in arm, DC = 6 + 2 = 8A Current in arm, BC = 4 + 1 = 5A Hence, \[J=5+8=13\,A\]