Question

Which of the following laws states that “Algebraic sum of the currents at a node is zero”?

• A. Kirchhoff’s current law
• B. Kirchhoff’s voltage law
• C. Thevenin’s theorem
• D. Norton’s theorem

Hint:

KCL deals with currents at a junction; KVL deals with voltages around a closed loop.

Answer 1

The Correct Option is A

Kirchhoff’s Current Law (KCL) states that the total current entering a junction is equal to the total current leaving it. This implies: \[ \sum I_{\text{in}} = \sum I_{\text{out}} \Rightarrow \sum I = 0 \]