Transcription: In this lesson we will discuss Kirchhoff's voltage and current laws. Kirchhoff's voltage law, abbreviated as KVL, may be stated as follows. The algebraic sum of the EMFs and voltage drops around any closed circuit is zero. A convention for the signs of the voltage drops arises must be adopted. Generally, if the negative polarity is first encountered, the sign of the voltage is positive, arise, and if the positive polarity is encountered first, the sign of the voltage negative, a drop. Examine the circuit shown. Moving clockwise in the direction of the arrow in the loop ABCD, we find the voltag ...
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