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Question
Which algebraic form is equivalent to \[I_1+I_2=I_3+I_4\]?
Options
\[I_1+I_2-I_3-I_4=0\]
\[I_1+I_2-I_3+I_4=0\]
\[I_1-I_2+I_3+I_4=0\]
\[I_1+I_2+I_3-I_4=0\]
MCQ
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Solution
Subtracting the leaving currents from both sides gives \[I_1+I_2-I_3-I_4=0\]. This is the algebraic KCL form with entering currents positive and leaving currents negative.
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