Loop Rule

The Loop Rule is a fundamental principle of electric circuits that claims that in any round trip path in a circuit, Electric Potential equals zero.

Loop Rule

The loop rule simply states that in any round trip path in a circuit, Electric Potential equals zero. This principle deals with the conservation of energy within a circuit. Loop Rule and Node Rule are the two fundamental principle of electric circuits and are used to determine the behaviors of electric circuits.

A Mathematical Model

A mathematical representation is: [math]\displaystyle{ \Delta {V}_{1} + \Delta {V}_{2} + \space.... = 0 }[/math]

This can also be represented in a circuit as [math]\displaystyle{ emf = \Delta {V}_{1} + \Delta {V}_{2} + \space..... }[/math]

A Visual Model

The total voltage in the circuit is equal to all the individual voltages in the circuit added together.

Another way to think about it is [math]\displaystyle{ \Delta {V} - (\Delta {V}_{1} + \Delta {V}_{2} + \Delta {V}_{3})= 0 }[/math]

Examples

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History

The Loop Rule is formally known as the Kirchhoff Circuit Law, named after Gustav Kirchhoff discovered and defined this fundamental concept of electric circuits.

He discovered this during his time as a student at Albertus University of Königsberg in 1845.

Kirchoff went on to explore the topics of spectroscopy and black body radiation after his graduation from Albertus. /tab

Connectedness

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See also

Other Circuit Concepts

Steady State

Non Steady State

Node Rule

More Information and External links

Kirchoff's Circuit Laws - Wikipedia

Loop Rule - Boundless.com Textbook

References

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