Kirchhoff’s current law states that the sum of currents entering a junction equals the sum leaving. If I1 = 2 A and I2 = 3 A flow into a node, what must I3 be if it leaves the node?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the Praxis Physics Exam with interactive questions and detailed explanations to enhance your understanding of physics concepts. Prepare for your exam efficiently!

Multiple Choice

Kirchhoff’s current law states that the sum of currents entering a junction equals the sum leaving. If I1 = 2 A and I2 = 3 A flow into a node, what must I3 be if it leaves the node?

Explanation:
Kirchhoff's current law states that the total current into a junction equals the total current out of the junction. Here, the currents entering are 2 A and 3 A, so 2 + 3 = 5 A flow into the node. To balance, the current leaving the node must also be 5 A. Since I3 is the one leaving, I3 must be 5 A leaving. The other numerical possibilities don’t balance the node’s currents.

Kirchhoff's current law states that the total current into a junction equals the total current out of the junction. Here, the currents entering are 2 A and 3 A, so 2 + 3 = 5 A flow into the node. To balance, the current leaving the node must also be 5 A. Since I3 is the one leaving, I3 must be 5 A leaving. The other numerical possibilities don’t balance the node’s currents.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy