AP Physics 2 Flashcards: Kirchhoffs Junction Rule

Study Kirchhoffs Junction Rule in AP Physics 2 with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

If $I_1 = 2 \text{A}$ and $I_2 = 3 \text{A}$ both enter a junction, what is $I_{\text{out}}$ ?

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ANSWER

$I_{\text{out}} = 5 \text{A}$ . Total current entering equals total current leaving: $2 + 3 = 5$ A.

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What this deck covers

This deck focuses on Kirchhoffs Junction Rule, giving you a quick way to review the definitions, rules, and examples that matter most for AP Physics 2.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 44Practice questions for this set

At junction

J

, currents

I_A=0.40\,\text{A}

and

I_B=0.70\,\text{A}

enter from the left and from below. Currents

I_C

leaves upward and

I_D=0.50\,\text{A}

leaves to the right (directions as labeled). Which current relationship must be true?

Choose an answer

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