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According to Kirchhoff's Current Law, what is true at any junction in an electric circuit?
AThe algebraic sum of currents at the junction is zero
BThe algebraic sum of voltages at the junction is zero
CThe product of current and resistance is zero
DThe current in every branch is always equal
Answer & Solution
Correct answer: A. The algebraic sum of currents at the junction is zero
Kirchhoff's Current Law states that charge is conserved at a node, so total current entering a junction equals total current leaving it. Therefore the algebraic sum of currents at the junction is zero.
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