Sign Conventions for Kirchhoff’s Law
Use the following convention to assign sign in the circuit provided
- Take Positive sign for current entering the junction and negative for current leaving the junction
- In a loop, a rise in potential difference or EMF from lower to higher is always seen as positive i.e. moving from negative to positive terminal
- In a loop, a reduction in potential difference or EMF from higher to lower is always seen as negative i.e. moving from positive to negative terminal.
- If the looping direction is the same as the current flowing through the circuit, the voltage drop across the resistor is considered negative.
Kirchhoff’s Laws
Kirchhoff’s Laws are the basic laws used in electrostatics to solve complex circuit questions. Kirchhoff’s Laws were given by Gustav Robert Kirchhoff who was a famous German Physicist. He gave us two laws Kirchhoff’s Current Law and Kirchhoff’s Voltage Law which are discussed in this article.
These laws deal with the flow of current and the voltage applied in the complex circuit and provide a way to solve these complex circuits. In this article, we will learn about Kichhoff’s Current Law, Kirchhoff’s Voltage Law, their applications, examples, and others in detail.
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