Engineering Board Exam Reviewer · Series Circuits · easy

According to Kirchhoff's voltage law, in a series circuit the sum of the voltage drops across the resistors equals

  1. the source voltage
  2. the source current
  3. the average of the drops
  4. zero

Answer

A. the source voltage

Solution

KVL: the sum of the voltage drops around a closed loop equals the sum of the source voltages. In a series circuit with one source, the drops add up to the source voltage.

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