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Question 31624
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Current Electricity: KCL MCQ

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KCLEasyQuestion 31624

Question

Kirchhoff's Current Law (KCL) states that at any junction:
  1. A
    Sum of voltages = 0
  2. B
    Sum of currents = 0 (ΣI_in = ΣI_out)
    Correct
  3. C
    Sum of resistances = 0
  4. D
    Sum of powers = 0

Correct answer

Sum of currents = 0 (ΣI_in = ΣI_out)

Explanation

KCL follows from charge conservation: charge doesn't accumulate at a junction, so all incoming current must equal all outgoing current.

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