# Chapter 1 - 1.5 - Problems - Kirchhoff's Voltage Laws: P1.42

$v_a=-5V, v_c=10V, v_b=-5V$

#### Work Step by Step

Using the lower left loop, $-5V+v_a+10V=0$ The top loop, $v_c-15V-v_a=0$ And the lower right loop $10V-15V-v_b=0$

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