O'Reilly logo

Engineering Science by Lloyd Dingle, Mike Tooley

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 22 Circuit theorems

22.1 Kirchhoff's laws

Used on its own, Ohm’s law is insufficient to determine the magnitude of the voltages and currents present in complex circuits. For these circuits we need to make use of two further laws; Kirchhoff’s current law and Kirchhoff’s voltage law.

22.1.1 Kirchhoff's current law

Kirchhoff’s current law states that the algebraic sum of the currents present at a junction (or node) in a circuit is zero as shown in Figure 22.1.

Figure 22.1 Kirchhoff’s current law

Kirchhoff's voltage law

Kirchhoff’s ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required