Practice Kirchhoff's Current Law (kcl) (1.3.4.1) - Foundations of DC Circuits
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Kirchhoff's Current Law (KCL)

Practice - Kirchhoff's Current Law (KCL)

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

If 5 A flows into a node and 2 A flows out, what is the unknown current leaving?

💡 Hint: Use the formula ∑Iin = ∑Iout.

Question 2 Easy

What does KCL state about currents entering and leaving a node?

💡 Hint: Think about conservation of charge.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does Kirchhoff's Current Law state?

Total currents out equals total currents in.
Current can be created or destroyed.
Total currents in equals total currents out.

💡 Hint: Think about what happens at a junction.

Question 2

KCL applies to which type of circuits?

True
False

💡 Hint: Consider what KCL relies on.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider a circuit with multiple paths converging at a node. Four currents enter: 2 A, 3 A, 1 A, and 4 A exits. Calculate the unknown current leaving the node.

💡 Hint: Sum all entering currents and set equal to leaving currents.

Challenge 2 Hard

A node has three currents: 5 A entering, 3 A leaving, and two unknown currents, I1 and I2. Establish the equations based on KCL.

💡 Hint: Set total entering equal to total leaving.

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Reference links

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