The currents into a junction flow along two paths. One current is 4 A and the other is 3 A. The total current out of the junction is_____________?
Correct answer: B. 7 A
- A. 1 A
- B. 7 A
- C. unknown
- D. the larger of the two
Explanation
Kirchhoff’s current law requires the total current entering a junction to equal the total current leaving it. Thus, 4 A + 3 A = 7 A flows out.
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