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89.
Which of the following is a valid Kirchoff Junction Equation?

A.    I3 = I4  +  I7
B.    I5  +  I6 = I7  +  I8
C.    I1  =  I2  +  I6
D.    I8  +  I4  =  I1

 

 
    
Kirchoff Junction Equations  

Sum of currents entering a Junction = Sum of currents leaving a Junction

I3  +  I4  =  I7    A is wrong

I5  +  I7  +  I6  =  I8   B is wrong

I1  =  I2  +  I6      C is correct

I8  =  I4  +  I1      D is wrong