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  4. The figure below shows currents in a part of electric circuit. The current i is

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Q. The figure below shows currents in a part of electric circuit. The current $i$ isPhysics Question Image

VITEEEVITEEE 2019

Solution:

According to Kirchhoff’s first law, At junction $A, i_{AB} = 2 + 2 = 4 \,A$
At junction $B, i_{BC}+1 \Rightarrow i_{BC}=4-1=3A$
At junction $C, i_{BC}-1.3=3-1.3=1.7A$

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