By applying Kirchhoff's voltage law, find the value of current i and the voltage drop v, and vz in the below figure which contains a current dependent voltage source. What is the voltage of the dependent source? All resistance values are in ohms. Solution : 2.

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KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.